subject stringclasses 4
values | grade stringclasses 15
values | skill stringclasses 445
values | pic_choice bool 2
classes | pic_prob bool 2
classes | problem stringlengths 0 1.12k | problem_pic unknown | choices listlengths 2 4 ⌀ | choices_pic listlengths 2 4 ⌀ | answer_idx int64 0 3 |
|---|---|---|---|---|---|---|---|---|---|
math | grade-7 | identify-alternate-interior-and-alternate-exterior-angles | false | true | \line{RT} and \line{UW} are parallel lines. Which angles are alternate exterior angles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADSCAYAAABw17dKAAAeOElEQVR4nO3de3BU5f3H8c/ZEAJFTCJUSIKSCBSUABu5aNQ2WUvFW2FRW3WKw8KoI5eBDIyaikrogB1sQ+ON2BkLmxkcxMpkR0Sgcknq1IzhFkSjFEoSZUjAyibctyGb3x/82ApJwGbP5uzl/ZrZGTlPcp4vMmf45OE5z9dobW1tFQAAAABT2KwuAAAAAIgmBGwAAADARARsAAAAwEQEbAAAAMBElgZst9utkpKSLpnL7/dr1apVGj9+vPr376+EhAQNGjRITz/9tE6... | [
"\\angle{TSQ} and \\angle{WVX}",
"\\angle{TSQ} and \\angle{WVS}",
"\\angle{TSQ} and \\angle{RSV}",
"\\angle{TSQ} and \\angle{UVX}"
] | null | 3 |
math | grade-8 | multiply-polynomials-using-algebra-tiles | false | true | Which multiplication expression does this area model represent? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEFCAYAAADZm5BpAAAYRUlEQVR4nO3dbWxd9X0H8N+91ybGJsEBDImTEogpkBRQiZeujLKHdmmTFlWa0CZWVZp4V6mlqyZe0W0vUZk0qVMV9UHixdauog9ptakbGRbLmpQu0MZpIA8NEENM4zh2wLETO4nte89esGY4OBlx/ubc4/v5vDvH8vn//H3jr/8+59xSlmVZAAAASZTzHgAAABYSBRsAABJqmu1kb/9kDI7V3utZCm/ZknKsu/GKWb8m07mRaXoXzXS4J45O9CVfc3nr6ljXsSH5dQG... | [
"(3x+1)(x+3)",
"(3x+2)(2x+3)",
"(3x+2)(x+3)",
"(3x+1)(2x+3)"
] | null | 3 |
science | grade-8 | compare-thermal-energy-transfers | false | true | Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over 1.5hours. During this time, thermal energy was transferred from ____ to ____. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAmWElEQVR4nO3de1xN+f4/8Fc7Ikno4jKG9kRKdp2OU8o0Lrk74UhJakxjGoYoGSb3QyGZGYdj5nBcvu4jY/o1M2Y67o4iowhhMBMNYVyiTlsXUfv3x5q92e0ua+9dyvZ6Ph49aK3P/rw/a+31WfvdZ33W2kaKaGcFiAxd2F7gy+H13QqiVxv7EZE4C87XdwvoNSep7wYQEREREVHtYYJPRERERGRAmOATERERERkQJvhERERERAaECT4RERERkQFhgk9EREREZECY4BM... | [
"each aquarium . . . the surroundings",
"the surroundings . . . each aquarium"
] | null | 0 |
science | grade-5 | animal-adaptations-feet-and-limbs | true | true | Golden eagles eat fish, mammals, and other birds. The golden eagle's feet are adapted to grab prey. Which animal's feet are also adapted for grabbing prey? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAEKCAYAAABnkCFsAAEAAElEQVR4nOydd5xcdbn/399zztSdsr1mN2WTTW8kIYSQQOhNQIqCCCJcQVEQEH6gXi8X4QpI86oRIYiEogjSESSEEiAhpBBCetvsJtlsb9PLKb8/zszszO4GFoxEueed17wyc+r3POfM7PN9vp/n+QrDMAxVVdF1HQsLCwsLCwsLCwuLf08kSUJRFEQymTQs597CwsLCwsLCwsLi3x9JkpAs597CwsLCwsLCwsLiy4Gu60iHuhEWFhYWFhYWFhYWFgcPy8G3sLCwsLC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA88AAAEKCAYAAAAsMWftAAEAAElEQVR4nOy9d5wcV5X+/b23qjp3T0/O0ihnyZIsW05yTmBMxuRglmTCAgtrs+wuC2bXsMaGXTAGzOvF4AWDF7AxGOcs2ZYVrZxnNJocO4cK9/2junt6RiNbgMG7/Pr5qD/T1ZVu3bpVus85zzlHKKWUZVk4jkMFFVRQQQUVVFBBBRVU8H8TUkp0XUcI8Wo3pYIK/iohK8S5ggoqqKCCCiqooIIK/u/DcRwsy3q1m1FBBX+1kBXiXEEFFVRQQQUVVFBBBX8dqMz... | 0 |
math | grade-1 | which-tally-chart-is-correct | true | true | Molly made lunch. She cut some fruit. Which tally chart shows the right number of each fruit? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAABJDElEQVR4nO3deXTcd33v/+d3mU27ZTteEjl2vCXOQkISSFICWWlDKCYkhALhtnAJEOivJ2k599yTctn6I+nvd0oToBe4v9DL2qQB2gstYLYEA6kdQtJszibvliVrl2akWb/b749xZMszkkbSaBbp9ThHhzPf7fMeSSYvfeb9/XyNIAgCRERERESkLMxqFyAiIiIispgoYIuIiIiIlJECtoiIiIhIGSlgi4iIiIiUkQK2iIiIiEgZKWCLiIiIiJSRAraIiIiISBkpYIu... | null | [
"iVBORw0KGgoAAAANSUhEUgAABDYAAAEOCAYAAABywpcrAAB5rElEQVR4nO3dd5xcdb3/8deZM3VrdtPLhvSQAiQQlKARpCMoFoooRRBQFAtcvD8vegUrelWK14IXuCoqSLNdpApExSxgqCmQTc+mbN+d2TL1nPP7Y5JNJju7O9um7L6fj8c+YM6c8plt2fOe7+f7NRzHcRARERERkWFhGEauSxARGVNcuS5ARERERERERGSwFGyIiIiIiIiISMFSsCEiIiIiIiIiBUvBhoiIiIiIiIgULAUbIiIiIiIiIlKwFGyIiIiIiIiISMF... | 0 |
math | grade-7 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for y when x = 0? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAgLUlEQVR4nO3db3CV5Z038F8AJRoKR7SSojZH09UIJQlNd8ufWROccbG7MqLbfbBTBKzSRsautrWdvuhu475Yq4OKzFZbdRewszNau6LrM6vYZ2u6fSzYabYJ/inWhj2OFoKjNWBwgwXP88LHdBESQs6dc+ecfD6vOPdlzvUNOp5vrlz3dVfk8/l8AAAAiZiQdgAAACgnCjYAACRIwQYAgAQp2AAAkCAFGwAAEqRgAwBAghRsAABIUNEKdn9/f/T39xdrOgAASEXRCnZ... | [
"1",
"9"
] | null | 1 |
math | grade-3 | lines-line-segments-and-rays | false | true | What is this? | "iVBORw0KGgoAAAANSUhEUgAAAG4AAABuCAYAAADGWyb7AAADaElEQVR4nO3cT0iTcQDG8WfqXre1lQqOCLRCo2BRRp30ooeG3uatQ9Q8dgkP0rXO5cEg6OhG10APUTIPGWR0ETTaIUqQDJoJKdvcdFPXQfeyzQ1n6vSp53OR/d7fK7+93/fPUJglk8lkIHSqjnoB8ncUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI4UgpHSuFIKRwphSOlcKQUjpTCkVI... | [
"line",
"line segment",
"ray"
] | null | 0 |
math | calculus | determine-continuity-on-an-interval-using-graphs | false | true | Is the function f(x) continuous on the open interval ( – 8, – 3)? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB+B0lEQVR4nO3dfXxU9Z03/M88JTN5nJBAgGASAcWCSRCMChLAxaqrrRVaV9urte12u5fddm177e519d6r7b3but7d7cPetdbt1b16VW272y33aq1opCgIaVADEQIJihghD4Q8DJmZzPOZM+fcf0x+IYEEZpLzyzx93v/wIpn5zi/nnDnzPb/5nu/PpOu6DiIiIiIiMoQ51QMgIiIiIsomTLCJiIiIiAzEBJuIiIiIyEBMsIloir1796K2thb33HMPAODDH/4wnnvuuWk... | [
"yes",
"no"
] | null | 0 |
math | grade-1 | more-less-and-equally-likely | false | true | On which color is the spinner more likely to land? | "iVBORw0KGgoAAAANSUhEUgAAAc8AAABkCAYAAADg1LuyAAAQ7ElEQVR4nO3de3hTZYIG8Lell/RGTnqhMFAsLStyaYGctKkKXjrseBkFfZ4ZadqCC+qDzu4Mjys38cLOjLuyoKsz7s7s7MiISNPK4w11eRRBRPextCSBpq3cry3sQFty0jYNoSXdP1Rm2KalSc8lKe/vv56TnO/tX+/zfeecL1G9vb29ICIiokGL1joAERFRpGF5EhERBYnlSUREFKQYrQOEwuPpguSWILkkuCQJbkkCAOgFAQZBgGAQIOgFJCUlahuUiIiGpahwfmC... | [
"yellow",
"neither; white and yellow are equally likely",
"white"
] | null | 2 |
engineer | grade-8 | identify-laboratory-tools | true | false | Select the test tube. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAPoAAAD6CAYAAACI7Fo9AABhNUlEQVR4nO2dd5ykVZX3f+feJ1XuMD05wQxpiKIsKoiwuKsiAo4wZMRVcA3Lou7u6yq4KGFXYUFXVwXTqiAwMIjADphIgmlBMgLDBIZhUufuCk+49573j6rqro7TcaZqur6fz0xXPc9TT92nnnuec+65554D1KlTp06dOnXq1KlTp06dOnXq1KlTp06dOnXq1KlTp06dOnXq1KlTp06dOnXq1KlTp06dOtUF7ekGzHRuueWWRtu2G4yx0sw6DSnSZEwKQqQNI0V... | 2 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 6 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAQnklEQVR4nO3dz2tc5d/G8evMr04mM8kkaaINCEUffRZWHwXBr3zdiRDEWnSlkJ1LoX+OIupKEQpdaIO0ILgQhSIuRFT4Pn0Uu2jTNslkJpNJpvPrPIsQGadJk3bO+dz3Ob5fm9qazv255j69cjozPScIwzC81ZH+b0dq9qVeKACIRC6QKlnpyZL0SEEKbt0Nwx+2XI8FIO1enJJy13b2fnKqIP335F4bAUAUmn3pPy1ptSP9746U2ert/Q/KBkDUKtm9bpGk7b6... | 1 |
math | pre-k | circles-squares-and-triangles | true | false | Which shape is a triangle? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGRElEQVR4nO3dTYtbVRzH8W9mOlOYtlPLDIoLu7E+tBbUaimVLnwD7t1rkYpCFfFFiLQFRZHi3rW+AReC2NGiINbauqkLK7ZoZzqBzEzmuoiHPs1Dknue/uf8vpskXG7yJ3y4kOTek07TNM31FbjahaU+rDUo1bodHdgzCU/MwCPT0Lnea5oLi6nHUiV3bBZ2XOkOHjw6DU/tGihUqm1Lfbi8DH+uwG9dmFhcG2wQMuWzPZMDUwC3+zDRv2uDUj5zplYbmEg7iqo... | 2 |
science | grade-7 | identify-ecosystems | true | false | Select the taiga ecosystem. This ecosystem has:
long, cold winters and short, cool summers
many evergreen trees
soil that is poor in nutrients This ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms This ecosystem has:
hot summers and cool winters
a medium amount of rain
soil that is... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACtCAYAAAD2xRSHAAEAAElEQVR4nOy9ebgtV1nn/1lr1bTHM90p9+YmNwNJOhBiCCBIAGVucEBE0BZQQaWl5acoUWhQmm4aw4MoDSLarcQANo2PtuDTzmKQiAxCTEJCCAEy3NzxnHuGPda01vr9sarq7H3vGW5yQwimvs9zntp7r6raVav2Pvtb7/t+v6/4lzVrL25BR1GjRo0aNWrUqFGjxjcFfQ13DEH0cmtr4lmjRo0aNWrUqFHjm42+BmGttd/qA6lRo0aNGjVq1KjxyIA3+eR/H0m... | 2 |
math | grade-3 | open-and-closed-shapes | false | true | Is this shape open or closed? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABkCAYAAAC8REciAAAJkElEQVR4nO3dT2zX933H8VemHuz6jwQ54Ma+5ccBS+HPJUYKUckhJJDbMFpRkAoobQ5rgyfNG6hL1zWbBgrSAs2lXQKpVKtMMbktuOwQKphk94IhknPgF+3y8+oe8CRjZG7sgH9OSpOWkp9/nx8/Px4nBIbvm9tTH72/n+9jd+/evRsAAKAh/qL0AAAA0E4ENgAANNDXSg/woKanqpmr3cxcbf4L/3zr9o1Jksqm/nT3djZzNAAAWPFYq+5gV2dqmTj/m1y5eP1Lo/q... | [
"closed",
"open"
] | null | 1 |
math | pre-k | addition-sentences-up-to-10-what-does-the-model-show | false | true | Which addition sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABUCAYAAAC4PkCPAAAQ2UlEQVR4nO3dW2wc133H8d/c9r4kJS5pkTRFRpLJWLBExFLgyoCkAkWkB8uwUThIWhhGGiQG/FajRQEVtZO0QPPSAn0yCrR1W9RA0Ac/BAlqIA9pULtyUsROHEatrfuNpERzKYnLvc3OzOnDcCmKoigtNXNmds7vAwSxZXLOfL0G58/ZmVlNCCFARERERESB0KPeASIiIiKiJOGATUREREQUIA7YREREREQB4oBNRERERBQgDthERERERAHigE1EREREFCAO2ERERER... | [
"3+5=8",
"2+6=8"
] | null | 1 |
math | algebra-1 | identify-linear-functions-from-graphs-and-equations | false | true | The graph shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAfwAAAH8CAYAAAA0Uh0TAABlVElEQVR4nO39eXRb930m/j/YuK8iJZKiRGqzVkuy5VVbbMeO7bETN1LSyskkrjtuf+NMEmcy53RO2tPJND6Wm542aePamSRtJnb6zUwmPrGdaKFl2ZIlhbRFi5YokdooSqRIkQAJEiD2u+B+fn9AoEWRFAHifgiAel7n6EAEcR+8eS/ufd8N91qEEAJEREQ0q1nTXQARERHJx4ZPRER0E2DDJyIiugmw4RMREd0E2PCJaIz/+3//LxobG0d/1nUdL7zwAkKhUBqrIqJ... | [
"linear",
"nonlinear"
] | null | 0 |
math | kindergarten | classify-shapes-by-color | true | false | Which triangle is blue? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFMElEQVR4nO3dzU4bVxyG8dd8SU2TVt1Q9QLaKouucx29qaJA2YRNPlZE6opIVTZhU74EKUlEIhk1CilGRF1gugAqOxhlxuPThaElEPsYY/7jOfP8VhhvZvEwA6+xp+Ccc7uRVKpJ1USqOwGXNlSQbgxK316Tvh6RCrsfnHtRSfuwELJbX0hDm7Xmg29GpO8/b1YIXFY1kd4eSuVI+rMmDVTqzSeIDL10Y7DZlCS9T6SB5NQTQC+dNBU7aSDdQ0FeEBpMEBpMEBp... | 0 |
math | grade-5 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAApR0lEQVR4nO3deXxU9b3/8feZOZNlsrOHfQcDiIhKXaqIKypqq7a39na/vV3sYvW2tFXbuqDVtlp/3W77e9xbb2+X21733fqzgnWjooBCZE+AkBBiyEIyJDMn5/z+mCQnSAiZZGbOLK/nXxMcyFed6Hu+81kMx3EcAQAAAIgLn9cHAAAAADIJARsAAACIIwI2AAAAEEcEbAAAACCOCNgAAABAHBGwAQAAgDgiYAMAAABxRMBGwj38j7A+9e+HVHXA9vooAAAACWewaAa... | [
"yes",
"no"
] | null | 1 |
math | algebra-1 | identify-functions-vertical-line-test | false | true | Look at this graph: Is this relation a function? | "iVBORw0KGgoAAAANSUhEUgAAAQ4AAAETCAYAAADH+ejgAAAe00lEQVR4nO3de3hU5Z0H8O+ZyVxyHy4hQYiIBjKAhcQEmxCIVN1iRES8bL1Varc827q2K89D63ZXkKuCT0tpRdBnW0q11HYRxEUXpFYrAZMUMSMQSEDkEjEJt8wkk+TMff8Ycs4MBMgJkzlzZr6f5+Ehk8wcXpKT77yXc96fEAgEAiAiUkCndgOISHsYHESkGIODiBRjcBCRYgwO6pEoihBFUe1mUIxicFCPbDYbbDab2s2gGMXgoB5VVVWhurr6sl9fvXo1Kioq0Nj... | [
"yes",
"no"
] | null | 1 |
math | pre-k | subtraction-sentences-up-to-10-which-model-matches | true | false |
Which picture shows 3 − 1 = 2? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAABKCAYAAAAi2W96AAALQElEQVR4nO2d228c1R2Av3Nmd33HSUwSEQJJIDdR2mAoJla5tFDUW1CK4C0IO72pPFSif0HhsZUq0ceqL04DbwQSUEullhKqipioBcI1jmkSxCUOxnHitde7szNz+rDZ68zuzu7O2Dur80nRem5nfr/M59lzzsw5FkopNWPCxylI2mApNJq2IyZgwIAdvbAxAWImo9TJhdUOS6Pxz13XQGw6lVu4LgG7+nJWazTtRtKGqSW4YMKZFMgFK7dBS6tpZwaMnKMAizZ... | 0 |
math | kindergarten | ordinal-numbers-up-to-tenth | false | true | The first picture is a house. Which picture is fifth? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAhtElEQVR4nO3deXgUVb438G8l3Q1ZukNIJgkhLZAMW0gCXiFAdCD3GiKMIquioMMwyJUZ5yIoA+/zvgrEh/s8AwIjXq/iBSfo4IKCMINrgjMwPiagcIlhCcskhmkIidJCOhvp7qTePw7pbL1UVVd1d6p+n+fRB7prOfnCOXWoOnUOx/M8D0IIIYQQQogswoJdAEIIIYQQQtSEOtiEEEIIIYTISLEO9k0Hj2Gf23DnXxtw00GjUAghhBBCiDZI6mAfvOZAwflbXjvOR64... | [
"paw",
"house",
"dog"
] | null | 0 |
math | precalculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the right at x=1? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAACQMElEQVR4nOz9eXRU95kn/r9v7Zuk0oIWBBKbEAgkgUDsGDAYb4nbS9x20ul00pl0O5N00pmZnsnp6V/Ot3synsx0kv4mnWTS+XYmdma6OxN3vMTGgLFZLQxCAoQkNiGEFkC7al9uVd37+6OQgsxWJd2PSiW9X+f4+Kiq7lMP91bd+9xPfRZJVVUVRERERESkCV2qEyAiIiIimklYYBMRERERaYgFNhERERGRhlhgE9E4Bw8exIIFC/Dkk08CAD75yU/ijTfeuOtrI5E... | [
"no",
"yes"
] | null | 0 |
math | algebra-1 | surface-area-and-volume-changes-in-scale | false | true | Look at this cylinder: If the radius and height are doubled, then which of the following statements about its surface area will be true? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAACqCAYAAADoZADPAAATrUlEQVR4nO3df1ST973A8XdALZWSpCu1VAgElQ5ETdwUW+0kKlrtegW6Wu12Crrres7ubMXNntZ7jrfdejfXU11xdT9O167Cna7d1gFuU3svzGCndkg1sSj4o234VeuvGUKrYs3z3D8gqSA8IM0v9fM6h5PkycOTbzRvvkme/NCpqqoihOhVVLgHIEQkk0AiVExMDJWVleEexg1PAgmRX/7yl0ycOJHY2FhMJhPPP/+85voXLlwgJycnRKMTfZFAQmTfvn38+Mc/5sy... | [
"The new surface area will be 2 times the old surface area.",
"The new surface area will be 9 times the old surface area.",
"The new surface area will be\n1\n4\nof the old surface area.",
"The new surface area will be 4 times the old surface area."
] | null | 3 |
math | pre-k | ordinal-numbers-up-to-tenth | false | true | The first picture is a sun. Which picture is second? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAo6UlEQVR4nO3de1yUVf4H8M+ZGWSGQUA0VCjvaLYaWGpZgppWuruklanZlpabtmtiXnZL3VJSs4taqZmat+zXVlqW0WqaJoS1tmCgUpaAeUkwSgQZmIGZ4fz+eObK3J65wVy+79erhHluh++L8+U8z3MujHPOQQghhBBCCPEJSWsXgBBCCCGEkFBCDWxCCCGEEEJ8yG8N7GotR/f9VzHgy1pUa6kXCiGEEEIICQ8eNbA/qdAi60eN04Zzzu86nK1vQlGNHo8eq/e4gIQ... | [
"tractor",
"sun",
"barn"
] | null | 2 |
math | grade-6 | which-model-represents-the-ratio | true | false | Which model represents the ratio 2 to 6? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAe4AAABVCAYAAACPbQdUAAANsElEQVR4nO3dbW8bVRYH8P/YGefJTmNn2U2AKpUg3XabVLsJpUkf1FCJwooYiVgg1Dd8kv0+FYgitbCLeAFdUQq0pCtVZfsEWkcsbVZsHhq7wbFjz77wmqYhyXjG987cOf7/3lRR4ztzOGWO75m5dyzHcZyFMvDdGlCoAhsOiIiIyBAdFpCKAyM9wO8SgLWw7jhXV8M+LSIiInJztA/ouLdW/2EoAfy+t17ViYiIyAyFKnDnEfCgDNxdA2KrG/W/YNEmIiIyTyp... | 1 |
math | kindergarten | classify-shapes-by-color | true | false | Which circle is pink? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAGjklEQVR4nO3d+09TZxzH8fdpqQJyDQxQ8DrBzM1Nt2wmu/nDsv26v3fZL7tmickubvOOWZzc1SEUSktbzn547GIMOKDt9+nznM8raaIhxm/Lu+fW03OSNE3TpW2YLUGxDrUUkaZ1JdCfh+leGD8CyVIlTa+v+x5LYnZ1ALrul9xfjh+BC8dchSLNKtbh7iYsbsO9EuTWa+4HikxaqT/vmgLYqEOu/sIPRFqp0VQ1hZzfUSQrFJqYUGhiQqGJCYUmJhSamFBoYkK... | 0 |
math | grade-4 | compare-fractions-in-recipes | false | true | Does this recipe call for more salt or black pepper? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAHMCAYAAADvfN8VAAB8QklEQVR4nO3de3zO9f/H8cd17XDtyAxjSIoOkkOsqORUOohCROHbUl9yqPkKX1+ROaaI1Y+aSOWUEBNSOSQpp8WwZs6TMWZmJzvvun5/zK522cbGNRs977ebW67r+lzv9/vz2XQ9P+/r9Xl/DBaLxcIlFosFs9lMdna29Y/RaMTJyQlHR0ccHBwwGAyIiNxqLBYLOTk5ZGdnk5WVhdlsxtHR0frHaDTq/38iIlIshryAbTabycnJISsri6ysLJycnHB1ddUHioj8I1k... | [
"black pepper",
"salt"
] | null | 1 |
math | grade-6 | identify-trapezoids | false | true | Is this polygon a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC1CAYAAABlJoioAAAeZklEQVR4nO3deXxU9b3/8feZ5UwSlgAiELYQWYUKBGxtba+2P7dqF3D7WXsvV3pva7Vi3bqp1KXeql2sW2/Va1vXn7aKFpe2Xu2i2FKXQgAFJIisMQIhCQmEmTNnzvf3RyRnBhNJyElmyev5eKCTM5P4Jc7yns98zvdjGWOMAAAAAAQilO0FAAAAAIWEgA0AAAAEiIANAAAABIiADQAAAASIgA0AAAAEiIANAAAABIiADQAAAASIgI1e90K90fS/O/r3N5NqdLO9GgA... | [
"no",
"yes"
] | null | 0 |
math | kindergarten | subtraction-sentences-up-to-5-which-model-matches | true | false |
Which picture shows 5 − 4 = 1? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAHwAAABKCAYAAAB5PTAOAAAMRElEQVR4nO2ceXAb132Av8VNHAR4CKRBUaJY3bbkI4osxUnddBLHaUapO7E9thXTSuvGaY4mSt1zmrbTsRtn6nYySevaUT0jKZaqiSXblRInityJHEmWTOsWI4WUTVEUwRMgCeLg4tjd/rEEQPECTCwJW9jvH/ItsL/3W3z73r59ewiKoii9CXg3BmEJUgo6NxAmAVxGWGaHGgsIvXFFaR4pdlo688Gd5WC6HFMLN1lghUPdG3RuHMIStEahJwFtMTCMpNQPdNk... | 3 |
math | pre-k | fewer-and-more-compare-by-matching | true | false | Which group has fewer? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAXYAAABeCAYAAAA31j+KAAAFsElEQVR4nO3dv28TZxzH8c/FIWeSgIOKWnWJsiRkAMGQKNkZWoFQUKf+mQVEVQb2AB6QWJyYgbKUCiTi/MJHsZ4OV6s42I7v7ns//Oj9WigFPXdvR/qkKQ4XOOfcu8/S61PpqCd9cQIATJHZQLpUk1bnpR/mpOBd5Nzzw7JvCwBgYeuyNNs+jX/y45x0bSFefQDA9DjqSXsn0l+fpf1TaebwS/wLjDoATKdLtXjDJem4J830vvoFAMB06m/4P06aKfdWAADWGHY... | 1 |
math | grade-1 | compare-clocks | false | true | The clocks show when some friends took out the trash yesterday before bed: Who took out the trash latest? | "iVBORw0KGgoAAAANSUhEUgAAAu8AAACZCAYAAACfZ9SkAAAidklEQVR4nO3deXwTdd4H8M8kvVt6ID24WiotUsCCnCogyimLu0WOVYGuKKCiu4KcHqwWHpT1kSrP7nK5gOUoKAsoroAiS9HiiXJDQYFCOVraQg/aJr0yzx+104YkbTKZNJnm8369eDn3/Ih8Jt/85hJEURRBLqn6rS8h7jmt2PbOlZWhtLpKkW35Bvuhy4HZimyLSE2YSyLXw1ySO9E4uwFkQXaxogcipekKy1C4/Yizm0HUtJhLItfDXJKbYfHuosScYmc3oVFlx68... | [
"Mason",
"Deb",
"Harper"
] | null | 2 |
math | kindergarten | count-sides | true | false | Which shape has 3 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAFq0lEQVR4nO3dX2/TVhjH8SctcMGfTUgT017AtpeAxBvYa51A6g0SEwLGLhgMJBCTQLAiVb0YJU0DxnFsx4l9dmEZwThlWWo/Puf4+7lqiJSeim/zI21IRsYY86YQeZWKzEqRlRHgxE6NRC5si3x/VuTbMyKjNwtjHsZ9Hwshu/yVyKndtL7w3RmRH8/VFQInNStFXs5FDgqRv1KRrXhVX0FkaNOF7bopEZGkFNkqP7oCaFPT1NKIbPV7FAwFoUEFoUEFoUEFoUE... | 0 |
math | kindergarten | count-to-fill-a-ten-frame | false | true | There are 8 triangles on the frame. A full frame has 10 triangles. How many more triangles do you need to make 10? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACQCAYAAAAyRxwtAAALcklEQVR4nO3dy27cRtoG4M9xgPyY2Y0XuYfZzhXkxgMIacAGFCNajBDAgQMbs5EXFiZwk93NU/0LK4fxqdVS8SDW86wsgabqRS36BZv8+Oj7qzYFAPHdt1/PvQQAVuCruRcAAABromADAEBGCjYAAGT00Q2H//rH4znWMZvn1/3//Cy//CWRvz9+EACcyBVsAADISMEGAICMFGwAAMhIwQYAgIwUbAAAyEjBBgCAjBRsAADISMEGAICMFGwAAMhoEQU77VKkXZp7GbO... | [
"9",
"6",
"2",
"3"
] | null | 2 |
math | pre-k | represent-numbers-with-pictures-up-to-5 | true | false | Which shows 5? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAATBUlEQVR4nO3dSYxdWYKX8e+ce+59L96LOeyIdNjOtDPTWVVO1UTSXaJakEI0jRBdCyQkSrBD3UiwomHDigXqHYvqNYhGQr1osUDqSY1AQl0LeijI7kqSHJ2DXeX0EPPwxnvvOYfFfREOZ9rpisiMOIb8/yQrwi9exHn3hT+dO9vEGOO9Et4fwL6HOiIip8QZmMngWgdWCjD3xjH+aC/1yxL58vnOLLgbg+YvFwr4SrepU0ROx76Hd/twt4T3BmD36uYLik/k9M1... | 2 |
math | grade-2 | skip-counting-stories | false | true | Each closet has 2 umbrellas. How many umbrellas are in 5 closets? | "iVBORw0KGgoAAAANSUhEUgAAAVcAAADDCAYAAAA2sVL5AAAlFklEQVR4nO3deXhM1x/H8fdkTySyEkIiIYQkGrHEvsSu1NJYaylK7VKp0mrtqtqKnbaoKg1tfxStLfYtKK2ldoIQa6jEkmRClt8fYZgmEZG5LuP7ep48jTtz534zPfeTk3PPnaPJiL2SgRAvuS2hwwCoP/0rlSsRIndbQodhonYRQghhjF5IuCakgtc/VgQesyIh9UUcUYj8kTYr8ivf4boywZSxV8ye2gC33TMlJkXDoSQNPc5b5PeQQuSLtFnxIuQrXD+4aE6bMxa... | [
"4",
"6",
"10",
"14"
] | null | 2 |
science | grade-2 | identify-properties-of-an-object | false | true | Which property matches this object? Select the better answer. | "iVBORw0KGgoAAAANSUhEUgAAAKwAAADcCAYAAADtE0oZAAAqrElEQVR4nO2deZQkR33nPxGZWWd3V0/3TM890oyk0YEkkMQOEmYxQkY2EivDgrjW9mK04IfxPmPE47FrjB88I4N5Qqv1yk+CRcDjkMASCHEIbDHLDGAkdFga3RrNffT09PRZdx4R+0dkVld3V88hjaa6svIzr6arKrMyo6q+9ctf/OIXvxBaaw1Qq9UYHh5menoa3/dJSGg3tm3T19fHypUryWQyAAitta5Wq+zYsYPTTjuNTCaD4zhtbmpCAnieR61WY/fu3Zx11ll... | [
"rough",
"hard"
] | null | 1 |
math | grade-1 | addition-sentences-using-number-lines-sums-up-to-20 | false | true | Which addition sentence does this model show? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABhCAYAAADsidaRAAAWiklEQVR4nO3de1BU590H8O9ykyCwgIJIiiB0xEsIqEREkyimmpibmijVTCZiY0xNO7bacYwxHTHSapom1TdmMrHOhFiD461gTMqr75gATpGLCBp11KgBwQXjgktY7iv7/nHchQUEFg57Lvv9zDC7nN2sv18WPV+efc7zaMxmsxlERERERCQKF6kLICIiIiJSEwZsIhLNJxcBzz3A8/8rdSWDo5Y+iIhIGm5SF0BEylDdCIzwBNx7+LXc0Aq8ng383y3Aw9XRldlHLX0... | [
"5+2=7",
"7+2=9",
"7+6=13",
"5+5=10"
] | null | 1 |
math | grade-2 | choose-the-appropriate-measuring-tool | true | false |
Which tool help you put the right amount of oregano in a batch of soup? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACoCAYAAAACcRc/AAAUe0lEQVR4nO2da0xb5/3Hv75gO8EGUyi3cs0F/7esMVsTAluXhGqNW1WNO3UlW14wpVvVTKq0vdgLJqXdu6qbJk2qJq0vpipqtaXptlYl2dpMNFOihoiEtibgLiaBcEnAlJttbHOz/fu/MOfYB5trOMcm/D4SsnzOc+znwIff+T3Pec7zqIiI3HPA7SAwFQZCBIZZM1oVYNIAu7cDBTpA5Z4luuZLdbWYB4kDWYD2VjD6pkgHWDKj1jHMWpkKA64AMDwHdAcBtS8... | 0 |
math | grade-6 | similar-and-congruent-figures | false | true | How are these figures related? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAATJ0lEQVR4nO3da2xU953G8Wc8vhYXhhgcwsA42GmyNA3kRgADxgY2wSEsGBtcxzMB0i7SVuquqnY3irTJSt28aF9sW6nVSlUrFhgTEowNoeGSAL5AMA6UBEMSupTrGANxwJisKQO+zL4YbMcUGmwf/J85/n4kv+AY5jyS/eLRn985P0coFAoJAAAAgCViTAcAAAAA7ISCDQAAAFiIgg0AAABYiIINAAAAWIiCDQAAAFiIgg0AAABYiIINAAAAWIiCjUFh27ZtKi4u1g9... | [
"neither similar nor congruent",
"similar but not congruent",
"congruent"
] | null | 0 |
science | grade-2 | identify-animals-with-and-without-backbones | true | false | Select the animal that has a backbone. Hint: Mammals, birds, fish, reptiles, and amphibians all have backbones. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADMCAYAAAAF8vOBAADQy0lEQVR4nOz9d5QkyX3fi34i0pavau+nx7v1fhdr4C0BEPRGtCIp+57ckfj0rp68rnSla0RRvCRBIxEEKVAEARIgPBbYBbDezu542zPtbXV5k5kR94/MrK7q6Z6dxYI6eucw9sx2VVZmZJhf/OL7syFeKGl9OAUZg78sf1n+pyyVAM7VYLENBRMezofX5V8S7l+W/9lLxoDDqfBzNdi6Lv+ScP+y/P9DienU01vXzJ1uNM0dL+9YhNDbrsgd7hFd3xRaa6SUIML... | 1 |
math | grade-5 | identify-rhombuses | false | true | Is this quadrilateral a rhombus? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADFCAYAAABuBIVpAAAkw0lEQVR4nO3deXBc13Xn8d/rHQ2wsa8EuGmjSMOitcSKYkeySYdaSImkTEmpRKnJ1DBVSWrislMzrjh/Z6pSlUiZmtSkamomU5mZjCnuoihLskmXODFLpLXRFiPZ2iiSIEAs3Whsje5+r9+bPxrsR0jcADTw+gHfz1/vooXmIXkpHBzce47hOI4jAAAAAGUR8DoAAAAAYDEhwQYAAADKiAQbAAAAKKOQ1wEA5fLcc8/p1KlTV31t06ZN2rVr1wJHBAAAliISbCwaO3f... | [
"yes",
"no"
] | null | 0 |
math | kindergarten | count-corners | true | false | Which shape has 3 corners? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAACfElEQVR4nO3UPY4UVxiG0a96fgL+nGE5IgKWwJIIvB8ktsQOMCSOGKczMBLjaZWDEpLjofW01T4nqtLVld7g0V3WdV2v7mY+387c7Gfu14Gfdr7MPD2beflo5tfLmeXq+7p+uD72LE7Zm2cz559ut5/fLmdeP94qhJ91s5/5+G3my93MH7czu+v77UBkHNLTs62pmZmv+5nd/l8HcEg/mvp7ndkddwr/F0IjITQSQiMhNBJCIyE0EkIjITQSQiNx/vCr67z/8/f... | 1 |
math | kindergarten | represent-numbers-up-to-20 | true | false |
Which picture shows 9 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAgIAAABcCAYAAAAcXt1iAAAKk0lEQVR4nO3dvW8b9x3H8Q9F8UlUqCfbkgCnsQ0rtYeglpcgg73bRgYvAZp/Iu7WuHPdbG3+gHZsgHYwkEDOGCAeAmQwUSCAnUqInMSFpCiSKJoUT3wQO1wY+UGk7sjf3e/oe78WWRJ593ufB35xON0l2u12e70urexJT1tSsy0AAPCKGk1IryWlhTFpNi0l1vfb7a/LtpcFAADC9nZBGl3ec7+ZT0u/zbtTAgAAeDU9bUnfVqW1uvTfPWmk3HR/wRAAAMCr77W... | 0 |
math | grade-3 | identify-trapezoids | false | true | Is this quadrilateral a trapezoid? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC3CAYAAAAo7imjAAAcKElEQVR4nO3deXSU9cH28eueDEkIEEgiIhD2NaKgghvuKGpRxGBAZBN8lJZ6xO2pvNqix1J9D/YtKn1cqjyEHUEaXHEvKqBVixiURRAQCEFMSEgI2TPz/pHkl4Q1ydyTe5bv56/f/BpuruOh51zZ5rK8Xq9XAAAAAGzhcjoAAAAAEEoo2AAAAICNKNgAAACAjSjYAAAAgI0o2AAAAICNKNgAAACAjSjYAAAAgI0o2D7akLVNl/9zqr7L3uF0FAAAAAQAi6GZxntz11r... | [
"yes",
"no"
] | null | 1 |
science | grade-8 | compare-thermal-energy-transfers | false | true | The table shows the same data about how the temperature of each cake changed over 5minutes. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAABfCAYAAACdpLOcAAAi0klEQVR4nO3de1xUdd4H8M8gchEHkIuYiwaLcg1QCYTUICV3nSwSwcsjKJqaPhgXo8JMVkEfs9gAXdb7qkmhmUqrst7QFMSUQCRFV7mUiKWOoozIRWGeP1pmRW4zMDAwfN6vF39wzu+c8/2dc76HL2d+54wA60ZJQaRCB15diTdPf6LqMIi6NeYRkXykizJUHQJRh9NQdQBERERERKQ8LPCJiIiIiNQIC3wiIiIiIjXCAp+IiIiISI2wwCciIiIiUiMs8ImIiIiI1Ag... | [
"Thermal energy was transferred out of both cakes at the same rate.",
"Thermal energy was transferred more quickly out of the cake on the plate.",
"Thermal energy was transferred more quickly out of the cake in the pan."
] | null | 1 |
math | grade-6 | changes-in-mean-median-mode-and-range | false | true | Look at this set of 9 numbers: How would the mode change if the number 79 replaced one of the 63's in the set? | "iVBORw0KGgoAAAANSUhEUgAAAWMAAAAkCAYAAABc6FuBAAAJ3ElEQVR4nO3de1hUdRrA8e8MA8hFHQVBCQ1ERRS8piSJeKl0zUuWpq1Fbma7pFbWbm25bbqWbVu5XtJu1lN5AzXJvCAVoqLiFSEvaGZI8gjeAWUYhoGzfyDzMCrCPp3TnOfp/fzH73fgvLzv+b3DnHPmYFAURQGwVduxVFqpUqpREEIIoRUD4GYw4u3eBA+jqWZMURSlzF5Bub3CtdEJIcTvkLfJE2+TJ6bK6ippxEII4SIWewXuRjeMFmnEQgjhUha7DaO9usrVcQg... | [
"decrease",
"no change",
"increase"
] | null | 2 |
math | kindergarten | match-analog-and-digital-clocks | true | true | Look at the analog clock: Which digital clock shows the same time? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEJCAYAAACuWVASAABcjUlEQVR4nO3de1yUZfo/8A+IgwJTynBwKHVABQ9MZVjgGaW0LcFKK6Vfe1Lbrd1Ntt1qg622A3Zuob61bdphawMr2RJsSwoFLcCSDg4eQB1GrcFBxtMwCCPK7w92JkbmcM+J4fB5v16+Ymbu53nudObFNfdz3dcV0NnZ2QkiIiIiIvKKQH9PgIiIiIhoIGGATURERETkRQywiYiIiIi8iAE2EREREZEXMcAmIiIiIvKiIH9PgPzvjOkcWts7YGzr6Ppve9d/g4YEIjQ... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA5AAAAEJCAYAAADiusiGAABnoElEQVR4nO3de1zUVf4/8BeIgwKTynBxKGVAhVRGKyrQvKCUbiXYxUppbS+Ku7WWbBfbcKvtot13pX71bcUumy5Y6ZZgW1IYaAmWVDJ4AXUYrUDQUXEYhAHh9wc7E+BczgwzzDC8no8HD+dyzvm8xRkf855zzvv4dHR0dICIiIiIiJzCx8fH3SEQuYyvuwMgIiIiIiKi/oEJJBEREREREQlhAklERERERERCmEASERERERGRECaQREREREREJMTP3QGQ+503XEB... | 0 |
math | calculus | determine-one-sided-continuity-using-graphs | false | true | Is f(x) continuous from the left at x= – 7? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAB8SUlEQVR4nO3deXxU9b0+8OfMmS17QhKSEEjY0WACREFBUKxUrbiBWmx/1draxbbWtve2t729bW9rLdeu3lq13i7XpcttpXUFI6Ig0KAEAgQIKDFAFkKWyTrr2X9/xKQEWTJwvpwMed6vl682kzlPPpyTOfPMyZkzkmVZFoiIiIiIyBYupwcgIiIiIjqfsGATEREREdmIBZuIiIiIyEYs2EQ0xPr16zFx4kQsXboUAHDjjTfi+eefP+F9NU3DZZddhrfffvtcjkhERDS... | [
"no",
"yes"
] | null | 0 |
math | grade-5 | understanding-probability | false | true | If you select a marble without looking, which color are you more likely to pick? | "iVBORw0KGgoAAAANSUhEUgAAARgAAAC7CAYAAAC+cYF4AABUDUlEQVR4nO2de5RU1Z3vP/tUVb+q39AC3WojojxsUQSixtiMJhFMYgScqDgx8ZpMNLm5yVJurhh1xZsFoisTdSaJozcTverNaMYoYOaOmNFEQeIDuGpEeYi8uwG76Xe9z9n7/rHPOXWqH9CP6qpGz3ctrT7vczZ1vvV7fH+/LZRSCh8+fPgYBRj5vgEfPnx8cuETjA8fPkYNPsH48OFj1OATjA8fPkYNPsH48OFj1OATjA8fPkYNPsH48OFj1BDM9w18EiFbu7H2tqL... | [
"black",
"pink",
"neither; black and pink are equally likely"
] | null | 0 |
science | grade-7 | identify-rocks-and-minerals | false | true | Sphalerite has the following properties:
pure substance
found in nature
solid
not made by living things
fixed crystal structure
shiny Is sphalerite a mineral or a rock? | "iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAADA60lEQVR4nOz9d5hc93nfDX/OOTNnep+d2Z3tFVjsogMkQLBaokQViqKarSiximPnldwSxeV5Ut7EuezEseO4RvJjS4otq1qSVUhJFDtIECBIomOBxfY+Ozu9l9PeP87OIejIJN/HVhxJe1/XXDtY7O7MnPO7f7+7fL/fWzAMw2DHdmzHvq+J/9hvYMd27P9k23GQHduxV7EdB9mxHXsV23GQHduxV7EdB9mxHXsV23GQHduxV7EdB9mxHXsV23GQHduxV7EdB9mxHXs... | [
"mineral",
"rock"
] | null | 0 |
math | grade-1 | am-or-pm | false | true | Andy's family is going for a bike ride in the afternoon. His father's watch shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAQoUlEQVR4nO3db2zcd30H8M+dnZbgC6P8aQ7UP9N8m8oK2HkyVSTphEBKNE3TlKhiTJvCg1JEXE20G04nNalwgGEjUh6QSFBpa8raatVibeOJDUoiwKFl7EGiSWWd7KIJOhxGoSVntUls3x6kduxzYt/v7nt3Pfv1ehQ7/v6+Hzd98L6PPr/vN1epVCoBAAAkkW93AQAAsJ4I2AAAkJCADQAACQnYAACQkIANAAAJCdgAAJBQd7sLqNfrr78eo6OjcebMmXjhhRfixz/... | [
"2:00 P.M.",
"2:00 A.M."
] | null | 0 |
math | algebra-1 | identify-linear-functions-from-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFQAAABeCAYAAAC98DOnAAAIa0lEQVR4nO2cfUiTXR/Hv807l/SmhMJahTNLJacpgoSGobIgkbpdWnMlkilYFEEo1h+zBEnHRO3FWaa2wApfSslE7z8sKULNSDRSyXzJxBd8Y87XuZ3njxvlGVk+XjtLejof8J9ztvP98XHXddh1/Xah+EUN+R34XerkgUEVJpQyTChlmFDKMKGUYUIpw4RSxiyhExMTiImJgUgkwqdPn76bb29vR1BQEDw8PMyJocrnz58RExOD/fv3w8vLC9HR0ejo6KC2Pmehzc3... | [
"nonlinear",
"linear"
] | null | 0 |
science | grade-2 | classify-rocks-and-minerals-by-color-and-shape | true | false | Select the black mineral. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAB4u0lEQVR4nO39WZNl2ZXfif32cIY7+ewR4RGRAxIJJGoAUCCrySqqWdVkN6liS90qkWpNJusXyWRt0idpE78DX2h6bKNRJoqSyO4qNZs1kGiggEogE8ghMmaf3e94pr23Hvbe5557wyMyC5kJZEb6Ajw9/A7nnnvOXntN//VfwjnnuJZruZYrRf6qT+BaruWLLNcKci3X8gK5VpBruZYXyLWCXMu1vECuFeRaruUFcq0g13ItL5BrBbmWa3mBXCvItVzLC+RaQa7... | 1 |
math | grade-1 | count-sides-and-corners | true | false | Which shape has 5 sides? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJoAAACaCAYAAABR/1EXAAAHt0lEQVR4nO3dy29bRRQG8O/6xtevJNBUbhXRLNIH7Y5ll7BBCFH+Gv4ioqpSF1WFaKkQLOimSFU2WVWlkUiBPCyTxK9cv31ZuIao9JHEM2fOXH+/XZXGmcx8nrHPvT4JkiRJ9nrAZgw0h8AgAdHU5gJgIQSuFYGLERDsdZPkacP1sCjNbi4Ccy/i8T+WI+B6aZxComk1h8DzI2C3B/wWA5nGYPwFhoxMWgjHmQKA1hDIDI99gcikSab6CZBxOxSaFQwaiWDQSAS... | 0 |
math | algebra-1 | identify-linear-functions-from-tables | false | true | The table shows a function. Is the function linear or nonlinear? | "iVBORw0KGgoAAAANSUhEUgAAAFsAAACCCAYAAAApB7R+AAAMTklEQVR4nO2dfUxTZxuHfxQFNCJsszpEWJFYqi0ViIRNHEwJsGiIk00tNbDpYE4HbhmMJRPUEJipI5GJsAUCozMgwzETBRKc2WxEM8c+QpybXZACc1YnXy0UESzn/WOxr335WGuf8/CWPVfSP3qf0/t+zpXD4Xz0uYu6xmbOGXCWcU5FXWMzJwCDGkw2RZhsijDZFGGyKcJkU4TJpghvss1mM8rLy7FhwwZIJBJs2LABn376KcxmM18lbeL69euIiYmBXC6fdHl3dzd... | [
"linear",
"nonlinear"
] | null | 1 |
math | pre-k | ordinal-numbers-up-to-tenth | false | true | The first picture is a crab. Which picture is seventh? first | "iVBORw0KGgoAAAANSUhEUgAAAtgAAABdCAYAAACfMRFHAAAfyklEQVR4nO3df3AUZZ4/8Hf3zIQkMAkEFEiyKpiQHyKguEncEswJofAExSR+Fdwtia7iVn0FLEHr6/kDbr29Vdn9krhVAqLhtk5g14TdE5S9BLwoW3UJBWdEvgkQ8HCdJLiynCQQIJPp/v7RmclMMj96Zrp7OjPvV9XWLjM9/Tz5bH/6ebr76ecRZFmWQUREREREmhBjXQEiIiIionjCDjYRERERkYZ062B/75Qx7d97cNsnvfjeyVEoRERERJQYIupg/7HbiY0nrgb... | [
"crab",
"boat",
"bucket"
] | null | 1 |
math | grade-3 | reading-schedules | false | true | Look at the following schedule: When does Social Dance class begin? | "iVBORw0KGgoAAAANSUhEUgAAAQcAAAD3CAYAAAAQTpEKAABs9ElEQVR4nO2deVxM+xvHP9MuLVqVVEpSCQkJKbIUFbJUCldc2ZV9d3ER2WXJet3cElPZ96LsS1ESIku2SPu+f39/9JtzO82ZmkqKe96v17w43/08M/PMdzk9H85Av04ELCwsLFUQA4DpDnMbexwsLCxNDJHGHgALC0vThHUOLCwsjLDOgYWFhRHWObCwsDDCOgcWFhZGWOfAwsLCiFhjD4Clfjy69gTR155ATlEGznOHN2hfh1cdQ0ZKJnrYmsJiaI8G7YuJ5Ldfce7... | [
"9:30 A.M.",
"4:00 P.M.",
"2:15 P.M.",
"11:10 A.M."
] | null | 1 |
math | algebra-2 | describe-linear-and-exponential-growth-and-decay | false | true | How does f(x) change over the interval from x=6 to x=9? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH/CAYAAABtkqoWAAByV0lEQVR4nO3deXxb5Z0v/o+sxZZ3x3Zsx4kdTMA0wUsCCSQkJRQGmFKYJrQX2mkLlKW0LAHCzPT2dnpvO0ymd0oIe9m3O723U37DUggmDSSQ1CkJMbESO5DFSbzE8SJb1np0Fp3z+yPItZzNSs5jSfbn/U9eln2++uY80tHnPHp0ZDEMwwAREREREZkiLdENEBERERFNJAzYREREREQmYsAmIiIiIjIRAzYRxdiwYQNmzpyJa665BgBw7bXX4s033zzu36qqiosvvhi... | [
"f(x) increases by 3",
"f(x) increases by 2",
"f(x) increases by a factor of 3",
"f(x) increases by 300%"
] | null | 0 |
math | grade-8 | identify-similar-triangles | false | true | Are these shapes similar? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD8CAYAAABNcdMMAABT7UlEQVR4nO3dd1RX9R/H8Sd7qQwFcYsDt6YpThzlyD0TJS00zZFmpqVmWmY5G1a40nLm3iPFMvdOTVTcI/dABAVk8/uDwvi59QuX8Xqc0wHu93Pvfd3TUd5+7meYJSYmJiIiIiIiIiZhbnQAEREREZHMRAW2iIiIiIgJqcAWERERETEhFdgiIiZ069YtcuTIwaVLl1IcnzRpElWqVCE6OtqgZCIiklbMNMlRRMS0unXrRp48eRg5ciQA+/fvp2XLluzYsYNChQoZnE5... | [
"yes",
"no"
] | null | 1 |
science | grade-6 | identify-how-particle-motion-affects-temperature-and-pressure | false | true | The diagrams below show two pure samples of gas in identical closed, rigid containers. Each colored ball represents one gas particle. Both samples have the same number of particles. Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? | "iVBORw0KGgoAAAANSUhEUgAAAmwAAAGZCAYAAAA0Im0SAACESElEQVR4nO3de1xUdf4/8NdcGYYZQIaLjOAdxrwr5D1F3ewiWLutqdhtt5Iya9uw/baVSVvbtptUu13VfmVW2m27iFbrJVErMwcF8zbgFXAQlesAMwwz8/n9Mc5xhosMMDfOvJ+PDOZc32dg3rzP+XzO5wgYYwxBrKrqEs6cOYvmZhMEAoG/wyEEACCRSBAbG4f+/fv7OxTCY5T/SCCi/Nc+sb8D8CebzYaKigowZoNUKvV3OIS4qKq6hPj4eEgkEn+HQniI8h8JZJT... | [
"neither; the samples have the same temperature",
"sample B",
"sample A"
] | null | 1 |
engineer | grade-6 | identify-independent-and-dependent-variables | false | true | Hint: An independent variable is a variable whose effect you are investigating. A dependent variable is a variable that you measure. Which of the following was a dependent variable in this experiment? The passage below describes an experiment. Read the passage and think about the variables that are described. Lester's ... | "iVBORw0KGgoAAAANSUhEUgAAAUwAAAFOCAYAAADtpiRUAAEAAElEQVR4nOz96a9l653fh32eaU17OlOdqlt3Iu+9vBy6SfbAVjuyLMuS3IkCyQHiwHAkR3EGxIkU/yeG8iYBAiTvEr9SAEsRJDmypChyD2o22WSTzeGSd55qOHXO2WcPa3qmvPitvetScgAHiEQG0AIOWbfqVJ291nqe3/MbvoP663/9r2f+9fWvr399/evr/4+uv/E3/sbP5edagBf+zUf0fU/OEeccMUb6vicl+e+UAwBKZZRSaA1aa4zVKKVomobtdov3A1VVyL+... | [
"the number of moldy blackberries",
"the temperature of the water"
] | null | 0 |
math | grade-3 | fractions-of-a-group-denominators-2-3-4-6-8 | false | true | What fraction of the shapes are triangles? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACUCAYAAACp1l47AAALsUlEQVR4nO3dv2+Uh/0H8Df2nTl++HTGNpypTbFTrDZDq2xthgzdOnRph0r9Kzp0NmOH4qXeShSiSB2w2PFQdUmKKhhiR0mIQixULBTTlKRFZgmDv4OTCvS1zUHu7nnuuddrTMxzH97TW48Ov4/s7u7uBgAA6IqRog8AAIAqUbABAKCLFGwAAOgiBRsG3I3t93P93rtFnwEAfOOIf+QIg23mnTeSJDd/dTVzJ2cKvgYA8AYbKmLp1krRJwAAUbChMta23suN7feLPgM... | [
"4/6",
"3/8",
"4/8",
"3/4"
] | null | 1 |
math | grade-3 | angles-greater-than-less-than-or-equal-to-a-right-angle | false | true | Is this angle greater than, equal to, or less than a right angle? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAAqCAYAAACJFiw+AAAGxklEQVR4nO3dXVBU9x3G8efALoSXsDvBgrHZKKCFMgJLX3RMZgJthF50amA6k4ukFtQmkjajm7RJm844JW0mSduo6LQpNangpKm9aOOmnU5aiYqdCU7SqSxiKUlkETEBGsywiCsGZHuBSxF8ocm+nMXvZ2Yv9uw5e55z9+yZ//mtEQgEAgIAAAAQEnHRDgAAAADMJxRsAAAAIIQo2AAAAEAIzSrYg8eaNTYyFIUoAAAAQOyzzNzQu79RLa/vkSTZc1coPjFZCwpLZU2... | [
"greater than a right angle",
"less than a right angle",
"equal to a right angle"
] | null | 0 |
math | grade-7 | front-side-and-top-view | true | true | If you look at this object from the side, what will you see? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAElCAYAAADeN5VfAABBSElEQVR4nO3de1yUdfo+8GsYGERGBi0FVzmolC6EQFuu5qRYrpmkYsHmiiZgaZiuUPpVWgsoNygtcNVI3UBL2QpaybNuJSFga/3WEZM0MTloC7rRDKICMszvj3GeQA5ymJlnBq73P4vMMzP3LK91Lz7ez31LdDqdDkREREREZBQ2YhdARERERNSTMGATERERERkRAzYRERERkRExYBMRERERGREDthls374d/fv3x6RJk6BSqcQuh4iIiIhMiAHbhFQqFSZNmoTw8HC... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA3gAAAElCAYAAAC24UBOAABG5UlEQVR4nO3df1zV9f3///vhpz+Qgy4VpwKalW8cgm01zZPgauY0f7T0XVObqGWj8i2UfpS9LbF8J5UFTo20Al3JKnWS5o/sh6SozfadR0yWhQmYDXQzjmIieTjfP/Cc/AXy4xxegLfr5bJLdn68zuMM57r3fLweD5PD4XAIAAAAgFuYTCajS8A1zMvoAgAAAAAA7kHAAwAAAIAWgoAHAAAAAC0EAQ8AAAAAWggCXiNYuXKl2rdvr8GDB8tqtRpdDgAAAIAWioD... | 0 |
science | grade-4 | read-a-thermometer | false | true | Select the temperature shown by this thermometer. | "iVBORw0KGgoAAAANSUhEUgAAAKkAAAKmCAYAAAA2HL7TAAB+IklEQVR4nO1dd3wURRt+9lIISe4ugJAekJaEUERK6DYsCApIESlipUtTqgVFehMUqWKhN8VG+0ARgUBApYQOUpIA0pNLgpg23x93u9l6t3u3d1l0nt8Px+zNPvvOu+888+7c3CxTtGQ0MXUbAwoKo8JU2gZQULgCDVIKw4MGKYXhQYOUwvCgQUpheNAgpTA8aJBSGB40SCkMD39vks9dtAQ796SUXMzfHxHhldDuycfx2EOtvHlpRezdfwDBwcGoVzupVK7PIis7G68... | [
"37°C",
"44°C",
"111°C"
] | null | 1 |
math | grade-5 | identify-parallelograms | false | true | Is this quadrilateral a parallelogram? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEGCAYAAABfD+LHAAAfJElEQVR4nO3daZRcZ2Hm8efeWnpvtfbFslZrlyzJYDJjYsMk4BiME85kIRljLEvxkjBxIODgcRKGmYSEY0NmIBDsEMfMSWbOzJCACYZADBb2gI0Xbd2txZIla7Wtrbfqrq6u5b7zobp1b5WWXureqltV/98HTrXcSNfGPnr4+623LGOMEQAAAABf2JV+AAAAAKCWMLABAAAAHzGwAQAAAB8xsAEAAAAfMbABAAAAHzGwAQAAAB8xsAEAAAAfMbAxIR/uyuq2XelKPwY... | [
"yes",
"no"
] | null | 1 |
math | grade-5 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAD7CAYAAABQdOO0AAAnjUlEQVR4nO3deZxT9b3/8ffJMsnMZBbEQsEVq4hWxKtoKVC1CEhrXajWhSqoLA5IbW/14tVfa1169Ra1v6rIPgqiInXXn4qAWChSWsCqWAREUFToUKbOkkky2c7vD5icWTIjSyYny+v5l2eS0/k+hqSPd07e5/M1TNM0BQAAACAlHHYvAAAAAMglBGwAAAAghQjYAAAAQAoRsAEAAIAUImADAAAAKUTABgAAAFKIgA0AAACkEAE7h936TEC/fKrB7mUAAADkFYONZnL... | [
"1 pair",
"no pairs",
"2 pairs"
] | null | 0 |
math | grade-3 | parallel-sides-in-quadrilaterals | false | true | How many pairs of opposite sides are parallel? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAEOCAYAAACzXGCqAAAkZUlEQVR4nO3daWBU5d3+8WuWzJKEEEBAJAoiJZZFW1RqFSmWB8UoqICIVJAutk+t1q2KKKC4I7Via/F52tq6gyIuYEFFK7VgxSqt8Ej/oYqIUgrIFpLZMjnzfwGZM5PErDNzzsx8P2+YM5mEm2ReXLm4z+92xGKxmAAAAACkhNPqBQAAAAC5hIANAAAApBABGwAAAEghAjYAAACQQgRsAAAAIIUI2AAAAEAKEbABAACAFCJgZ7HP9hia/r/VevadWquXAgAAgMPcVi8... | [
"no pairs",
"1 pair",
"2 pairs"
] | null | 0 |
math | grade-7 | mean-median-mode-and-range-find-the-missing-number | false | true | Amy has the following data: If the mean is 8, which number could s be? | "iVBORw0KGgoAAAANSUhEUgAAAVIAAAAkCAYAAADb2bKHAAAGkElEQVR4nO3da0xUZxrA8f85c2DGAUFkGNiKeEOGkVq3atGuu21qK12IElsT05tJa5rGdjfbbpNN2mTT9Mv2w2YvadptUj9odrfZ2sa2XgKrJsZu1/uFihdgIFIqDKgMIHfmvh8kJKwkjM45ZwZ4ft/mPWfmeXne8z6czHvOGSUajUYBQiEYGYFIBIgihBBiIgqoKthsoGmjTdFoNOofAb8/sX0TQoipxmoFqw20cEiKqBBC3A+/HywaqFJEhRDi/gX8oIbDie6GEEJ... | [
"36",
"6"
] | null | 1 |
science | grade-4 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAC4CAYAAAAxDlOsAAAaf0lEQVR4nO3deZgV9Z3v8XfV2c/phW56pemmWRswLILBuOEScYyKmjETk0xMruPcudGMs9w8yc1kebwTM3lM4sy9k0xInEnUUbxBk8gACoKobIKCttAIHZql932ht7Mvdf+o06fpBTzSh6rTzff1PHki1dXVv+6q+tSvvvX71VE0TdPaQnDKBwNRiGgIIURKWBXItMB8NxTaQWkLatrBfrObJYSY6q7OAutJn/6PYjtUePQ0EkKIVBiIwgkvtIagxgdqf0T/goS... | 1 |
math | grade-6 | quadrants | true | true | Which shape is in Quadrant II? | "iVBORw0KGgoAAAANSUhEUgAAAfkAAAH8CAYAAADSe9ZXAAA4H0lEQVR4nO3de3BT54H+8UeysLENNjYGjIlxQsMlAYcECOES01DCLAlZcmUyTHrJJNtZOtMh0810Jst2O91Mw6bzm7QJTbNbdjuhu822E4ZsGwpZAknAmDrEEMBcA6Q1F2NjwDfZsiRLOr8/WHm5GSTjo6Pz8v3MZCY6ks55eC2dR+eiI49lWZYAAIBxvE4HAAAA9qDkAQAwFCUPAIChKHkAAAxFyQPQb3/7W23fvr3ndiQS0Y9//GMFAgEHUwG4UZQ8YLjVq1dr9er... | null | [
"iVBORw0KGgoAAAANSUhEUgAAApcAAAH8CAYAAACEt4SVAAA+MUlEQVR4nO3df3DU9YH/8dduNolJSEJCgBAMUSs/FCIKivwKlSJzKBZ/Mg5Dfzh6naMzHZye0xmP8zo9p3J2vmOr1HpX7jrSu3rtyWGtFDwEFUJoxIBAgICANgFCQhLya5PN7mZ3P98/0qSEENjA57Of/Wyej5mOt5vN5/O6N5989rXvz2c/H5dhGIYAAEDCcblcdkfAMOS2OwAAAAASB+USAAAApqFcAgAAwDSUSwAAAJiGcglAv/3tb7Vnz56+x6FQSD/+8Y/... | 1 |
science | grade-4 | use-evidence-to-classify-mammals-birds-fish-reptiles-and-amphibians | true | false | Mammals are a group of animals with similar traits. The following traits can be used to identify mammals: They feed their offspring milk.
They have fur or hair. Observe the animals and read the descriptions. Select the one animal that has all of the mammal traits listed above. Western gorillas have black, gray, or brow... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAACmCAYAAACcAuREAAEAAElEQVR4nOy9eZgkV3nl/btLLJmVtVf1olZ3a+vWhiwBEiAkMAgEmH0TAmSDDWIxw2DA2DMwY5uZwdvYLMY2Y8MAwsIw2BgwBmwEWKzGWiwJCbSAoCX13tVVXUtuEXGX748bEVWlBQkBNp8U53ny6eqszMibEVGZJ973PeeIq5a8P3EERhUNGjRo0KBBgwYNGvxUsGLhlh6IZeN9QzwbNGjQoEGDBg0a/LSxYkF47/1/9EIaNGjQoEGDBg0aPDig1/7nox/6fTw... | 0 |
math | grade-3 | find-the-next-shape-in-a-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADhCAYAAAC9ZMGZAAAUdElEQVR4nO3dW2xd55Uf8LX3ufCQokiZTiRLchLNqOOBHV/iiTOeDpwMik7n0ocmaIG5AQWaoi+Z1z4VTdBL0ucWKNALWvRlHpoCLdAUaJuZTNO4TpBmxi0S15fEiiZOYsm6RJQlmrdz2bsPjChpJJEidc7e+3z8/QA/mWd/a33LPvzz4z6bWVmWZQAAAEnI6y4AAAAYHwEfAAASIuADAEBCBHwAAEiIgA8AAAkR8AEAICECPgAAJETABwCAhAj4AACQEAEfAAASIuA... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAADhCAYAAAAJS2C/AAAaH0lEQVR4nO3dXWxc533n8d95mcPhkBzSlE2KouwoUaNAfpHtWonTrJOi22zb7EXttkDTLlCgKXLj3vaqaILubrLXW2CBbRZddC9ysVmgC9QFuuvWaWqvYrhu3cJWLSmWwrVsi7REmUNJ1JAzc16eXjCiJIvvPOc8Zx5+P4AvbGue5/9//jY5vzlnZjxjjBEAAAAAJ3ieZ7uESvJtFwAAAAAARSP4AAAAAHAewQcAAACA8wg+AAAAAJxH8AEAAADgPIIPAAAAAOc... | 0 |
science | grade-5 | predict-heat-flow | true | false | Two solid blocks are heated to the temperatures shown. The blocks are placed so they touch. Which diagram shows the direction heat will flow? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAALgAAAEcCAYAAAB0yX6LAAAaMUlEQVR4nO2de3Acd33AP7t3Zz0tyXHkh+zYTRw/YmI7cVIcQijDQIYCJdM0lJYpU2CAdqYtNM+BkJJAAoUS2wlDCKQdCIFCaAYSmkBxmkBKmwckxE7sPPzExrZsWbJlPc7ySXe72z/21reS7qS70+7db3/7/cxobEsnee/02c/99ne/2zUcx3F6xmDvCAxbkHMQhMiSNGB2ApY3w/xZYPSMOs7zQ/XeLEEIng1tkNwz4v5j4SxY2eLaLwhRZdiCXafg6BjsHgF... | 0 |
math | algebra-1 | write-compound-inequalities-from-graphs | false | true | What compound inequality describes this graph? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAKD0lEQVR4nO3da0yTWR4G8KfItXiBCEjxzqhrjKareANFYf2igwhFjCIkMhqNToy6qNGYjOM46mgcbwQdx0BEMzKOpMDKyowflGJUbKABjLfB3YjFDUSMoFGjbaH7gaGK3AoUTt/2+SUk7Xn58BxOTvrn9H3PkZnNZjMcSFZWFmQyGRISEkRH6RX2w76wH/aF/SAiInvmKjqArVVXV4uOYBPsh31hP+wL+0FERPbM6gLbaDRCp9PhwvULCBsbxhUX6lTm7UycKz4HbZU... | [
"$x<0$ or $x>2$",
"$0<x \\leq 2$",
"$0<x<2$",
"$x<0$ or $x \\geq 2$"
] | null | 3 |
math | grade-1 | compare-money-amounts | true | false |
Which is more? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAfsAAACYCAYAAADjnECSAAB8+0lEQVR4nOz9d3Sd53WnDV9PO72j9w4QINg7KVES1W3JRXIvslPtOMUlyeTNepM3mTeZePJNvtSZb8aO48hO3OQmqjeSIimxd7AABNH7OQen96d9fxwQluImSqLk0M+1lpYkEuW5f8A5+77vvfdvC6ZpmvMluJKDtA6aiYWFhYWFhcV/YmQBvBJ0uaDGBsJ80TSPpd7ux7KwsLCwsLC4HmzxgTycK/9PnQ163OWdgIWFhYWFhcV/XtI6DGVhrgSXcyCmtPJfWIH... | 0 |
math | grade-7 | make-predictions-with-scatter-plots | false | true | Based on the scatter plot below, which is a better prediction for x when y = 23? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAFhCAYAAABK/t0lAAAkPklEQVR4nO3de3CU5f338U8IgU2CsAYb4ibFSA6iDtlkUgcQSxIewQPJAK1WVI4i5VAcYUSHdmyN7Yz8rAiEQaNiS9CZ32hVgsWONTzK1nnaROtOd0FaSAwG3IRAOQQNJMHIPn9YdhpyAOTK3ps779df3Pd1u9/vlRnNh8trrzsqGAwGBQAAAMCIAVY3AAAAANgJARsAAAAwiIANAAAAGETABgAAAAwiYAMAAAAGEbABAAAAgwjYAAAAgEERFbBbW1vV2tpqdRsAAAD... | [
"20",
"61"
] | null | 1 |
math | grade-6 | similar-and-congruent-figures | false | true | How are these figures related? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAB4CAYAAADIUIXCAAAI4UlEQVR4nO3dT2icZR7A8V+adLtaa6URuq3SJvhnZcGiBupuXbpt0WURlW2sLhW8aXG1KtReCgurUHb3JMVSrx22aDw1B6MXDx4jaEbsrYeFeMmlpbiBPZQYZg8ldWpn8ibpM+/zzsznc2rm0HkgDHx58pv3N9BoNBoBAAAksS73AQAAoJcIbAAASEhgAwBAQgIbAAASEtgAAJCQwAYAgIQENgAAJCSwAQAgIYENAAAJCWwAAEhIYAMAQEICGwAAEhLYAACQkMCGVTh... | [
"similar but not congruent",
"congruent",
"neither similar nor congruent"
] | null | 2 |
math | grade-3 | choose-the-appropriate-measuring-tool | true | false | Which tool would you use to find out how heavy a watermelon is? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAJYAAACnCAYAAADzJ6XqAAAiLUlEQVR4nO2deZwU1bn3v1W9zNbTPTP07AvDOggIgrgEEBOiIKIxonjjEnxViF4vmqv5iMtN7tWQqIlbFCTB7VXMIphXI26omBcEVDYTDLIMMA4Ms+89W29V5/5RPb3M9CBLd0831vfzgZ46tZxTVb96zqlT5zyPJIQQdW442A0dCngFOjonjFGCdAOMSoVcM0h1LiG2OQa7WDqnE+dZwXigW1vIN0NZmqY6HZ0TpUOB/V1Q64bybpAdXm2FLiqdUyHdoGkIoFM... | 0 |
math | grade-2 | write-subtraction-sentences-to-describe-pictures-up-to-two-digits | false | true | Which subtraction sentence does the picture show? | "iVBORw0KGgoAAAANSUhEUgAAAfQAAADICAYAAAAeGRPoAAArBklEQVR4nO3da5BcdYH38e/py0z3XDO5TW6QkJAIXiKwkBDJUirqKngrwu7WqkB8tHwoVi1Lxad8cBe1dnWrpHS39MWutSyRCOy6uupKyLOouKtRSISEGCAhJGEyScjcr90zfTvnPC+GzEzP9OWc7tOTM2d+3zdWT5/bJ/+Sf3ef06cN27ZtlFJKKTWvC13sA1BKKaVU9WlCV0oppQKQJnSllFIqAEXcLNydGeYPyTMcTZxlcV0zhxOdAGyIL6cpHGNz06VsbrykJgf... | [
"39 − 8 = 31",
"40 − 9 = 31",
"38 − 9 = 29",
"39 − 9 = 30"
] | null | 3 |
technology | grade | logo | false | true | This is (part of) a (former) logo of which computer related brand? | "iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAAAB5fY51AAAscklEQVR4nO3dd5RdV30v8O8+55Zz2/SikUajGY26VWxJxpJxxQUXsE3ABAMJwSuY90LJgvAgWcniURJC8vLiQB5khYDz/DAmJLaxMZaxLcuyiiVZddRmpJnRVE2vt5dz9n5/SDIGVK6se/c+59zfZy0vsCzN/mnune/de59dWC8WCSiiXXc1xv/PN5iq9oupZ98+8d7PfhuTVlZ1Ka7h+fD7MPS5P4RuGK58z7gB51w0PP4UzO8/UZSvrxXlq5Y4zrnYcOQUximsCkf... | [
"Samsung",
"Compaq",
"Amiga Inc.",
"Sharp"
] | null | 1 |
math | grade-2 | match-addition-sentences-and-models-sums-to-10 | true | false | Which shows 7+1=8? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAagAAABKCAYAAADuScD9AAANJklEQVR4nO3dTYwcZ53H8d/z1Ft39cuMPU4ytokTxZkEx8uSLNo4IeSGwrK8SAgREEIRB25ohaLV7mGPywGJPSC0e0Dc2APLskIIAuGyJ9go2WhXQgrZyC8Y4Zfx+GWcmenXqq56nj3UtD1tt7u7uuvpfsb8PlIU29NV1V+XpX9XV3W10FrrjRg41wYaKZBoEBERzZ0rgJoDrIXAQz4gNiKt395Z9NMiIiK67VQdcM+2s98c9oEnK9n0IiIimrdGCpxuAVdi4Ew... | 0 |
math | grade-4 | identify-faces-of-three-dimensional-figures | true | false | Which shape has a square as a face? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAOAAAADgCAYAAAAaLWrhAAASkklEQVR4nO3dW2zb130H8C9F0bLkULZp2WJs3SVLdtLYji9x0rppOrTZHpYVG7DtIeuwAbtgwC7YHoa9DEPf9jZgA1YM2IZ1fmqGDcj6khZDt3YrmnoN1rRwGl8Sy7FsUxJJXSlLpiTu4cfz558USfHy///POfx/P4AgWZbtY4BfnvM/t1+kUCgUUk+BuxvA2g6wXQAR+aQ7AsSjwOk+YPAAEEltFQo3VnU3iyh8rvYD3Xc25BfPHgBmDkk6icgfazvArRzw+Cl... | 1 |
math | grade-5 | interpret-bar-graphs | true | true | The transportation company tracked the number of train tickets sold in the past 5 days. Which bar graph shows the same data? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAADdCAYAAACBgQWfAABBNklEQVR4nO3deViVdf7/8efhAIKCIijuC4s7irnhkqKJZO6aODpmOWaZ/krSyZq0ydRMK6fG6WvquJVpjqmVCu7mFuW+JooliIoooLLvcH5/kKdOYKIdQeP1uC6u8dznc9/3+5xD17zOh/f9uQ2jBu0xISJlxpJ1XUq7BBERkT81m9IuQERERETkz0QBW0RERETEihSwRURERESsSAFbRERERMSKFLBFRERERKxIAVtERERExIoUsEVERERErEgBW0RERETEihSwyxi... | null | [
"iVBORw0KGgoAAAANSUhEUgAABPIAAAFtCAYAAACN9kQEAACVCklEQVR4nOzdd1zVZf/H8dfhsEFAVMSF4l64FcWVSs4caZqjYd6ObLnSyu6GNqy76S/LvCtNM7WycuE2S8XcoihucIsKMmWfc35/kKfODa5EDuT7+Xj40HOd63t93+ccSvh4DQNgQURERERECoTFYiE2C46nQYoJcvTdtoiIiPxNjgYoYYQa7lDWGQyokCciIiIiUmBiMy3sSLZ3ChEREfmnCfYCR3uHEBERERH5JzmWlvt7OWeo5ZH7r+giIiIif0eKCY5chQt... | 0 |
math | kindergarten | am-or-pm | false | true | Jim's clock is beeping early in the morning. The clock shows: What time is it? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAACwCAYAAAA16xkbAAAQdElEQVR4nO3db2zcd30H8M+dnZbgy0b50xhE20nxprICvjyZKux0mobmaJqmKQEx2EZ4AEUk1UTKcDqpCaqDNmy08qSJBJW2JqztVjXRNp74QG0FJLSMPXA0CdbJLpqgw2EUWnJWm8T27UH+2Wdi3+/ue3e9u9frUZPm+/t+rumDtz/63OeXq1QqlQAAAJLIt7sAAADoJgI2AAAkJGADAEBCAjYAACQkYAMAQEICNgAAJNTf7gLq9dprr8XJkyfj9OnT8fzzz8cPfvC... | [
"5:00 P.M.",
"5:00 A.M."
] | null | 1 |
math | grade-8 | mean-median-mode-and-range-find-the-missing-number | false | true | Kurt has the following data: If the mean is 9, which number could n be? | "iVBORw0KGgoAAAANSUhEUgAAARkAAAAkCAYAAAC9g07QAAAHNElEQVR4nO3ca1BTZxoH8P85ORATI0SDXFJkQRYUwVpprSN4wV7A6VSdemntuOu2WnbHdW27W0e37e5W2922s629YNttu3Znt1ZdW0UtjpeOFFwVLN6gFhKkEqKsSaByK4SQnOTsB2xqxAXp5D0nZZ7ftzwn8H/mfScPyZsETpIkCQDcPhFOjwteyQcJhBAyeBwAFcdDGzYM4bzQW5MkSeoSe9At9ijbHSFkSNEKamgFNQSPz0sDhhASdE6xB2G8CryTBgwhhBGn6AY... | [
"3",
"19"
] | null | 0 |
math | grade-2 | find-the-next-shape-in-a-repeating-pattern | true | true | What shape comes next? | "iVBORw0KGgoAAAANSUhEUgAAAvgAAAD1CAYAAAAlI4EUAAAb3ElEQVR4nO3dfZBV9X3H8c+55z4sywJCcBEWfBi0sTOdMZ1qMpmpptM07XRs/nH6R+0/ZibppKPtHz5Uo0IsqE2s/hNtagWF0QQmIZkazGRIManRmkAQXCwhwGZIYQXE3bCs7BP3nnvOr39ceRJY9tw9D7/7u+/XjOMAu+f8+PLZnc89e87vesYYIwAAAABOKOS9AAAAAADJoeADAAAADqHgAwAAAA6h4AMAAAAOoeADAAAADqHgAwAAAA6h4AMAAAAOoeADAAAADqH... | null | [
"iVBORw0KGgoAAAANSUhEUgAAAz4AAAD1CAYAAACRDCAyAAAgmklEQVR4nO3db2wd9Z3v8c/MnD+O49hxmjh/HIdEht2stBKtlrRaaUtXpd3VqssT1AfbPqFSe8UKug8gLN1C0jYBbmFBuirc3t5CAdEWtKVVW6hWdENbCkubNCQ43GyaP1W6weSvTRwTx3bOmTPzuw8OCXHiOJ7j+Xd+5/2S+qCJM/PjyyeH8zkz5zeOMcYIAAAAgBUcx8l6CbnkZr0AAAAAAEgaxQcAAACA9Sg+AAAAAKxH8QEAAABgPYoPAAAAAOtRfAAAAAB... | 1 |
math | precalculus | find-limits-at-vertical-asymptotes-using-graphs | false | true | The graph shows f(x). The dashed line is a vertical asymptote. | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAH3CAYAAACBwSh7AAB5f0lEQVR4nO39e3hT150v/r91l2z5hg22Y7CBcAkmmAQCiRMISUMSGto00GGSdtI2nZ5Opye9/to57XT69PymQ3v6bZv2204vmZ7JNOll2ibNrYU4CQnXmBCDAYPNzRgwNsYX2bKs675o7+8fQgaDjSV7bUuy368neYylvd9elqWtz15aey2Trus6iIiIiIhICHOqG0BERERENJmwwCYiIiIiEogFNhERERGRQCywiaaQ7du3Y/bs2Vi/fn2qm0JERDRpmXiRI9HUsXb... | [
"$\\lim _{x \\rightarrow 6^{-}} f(x)=-\\infty$",
"$\\lim _{x \\rightarrow 6^{-}} f(x)=\\infty$"
] | null | 1 |
science | grade-5 | evaluate-natural-energy-sources | true | false | Below are three examples of using energy from natural resources. Select the use of energy that did not add to air pollution. Hint: Burning a material such as wood, oil, or coal releases chemicals that add to air pollution. The engine on a garbage truck burned natural gas. Many early railway locomotives had engines that... | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAp8AAADOCAYAAAB4pWlzAAEAAElEQVR4nOz9eZgkSX3fj78iIjMr6+z7nOm5d2bvXdgDVgvsArsgIUBIFocFwodAlm2QhYzkxxaPzSPJXyEhGf3QgXgkCyMQNjby14u+CCzYg10WWPa+Zo/ZuWd6+q7uuiszI+L3R2ZVd8/OdM1MzwKS8jVPTVRVVl6R0VXv/MTnEA+uWLsvD0VFSkpKSkpKSkpKyktCVcNzdRCVyNpUeKakpKSkpKSkpLzUVDUIa639QR9ISkpKSkpKSkrKPwyctS/Ezz+7yc3... | 0 |
science | grade-5 | identify-magnets-that-attract-or-repel | false | true | Two magnets are placed as shown. Will these magnets attract or repel each other? | "iVBORw0KGgoAAAANSUhEUgAAAdsAAAC6CAYAAADmped/AAAp4UlEQVR4nO3dd3wUZf4H8M/MzvbdJCShJkCoQSIlgIB0laKigCIKKmIDD3u9O/VO7/Q8y8+zd0QBUUGwoSAIFgQRUKooXSBAgJi+vc38/liDQdO2zM4zM9/368VLuFMYNk/m83yfykmSJIHEzR8CDpdFcLRcxNEKEZUeEe6ABG9AgufkD5z8ucsX/bgzbBzsZg42c/Sfv/8A0mw8mtk55DTjkZNpQPtsXuG/JSGEkERwFLZNs+dYBAdLIzhSLuJouYjiiggOl4mo8KT... | [
"repel",
"attract"
] | null | 0 |
math | grade-8 | apply-addition-subtraction-multiplication-and-division-rules | false | true | The number line shows an unknown number, t. Is 1+ – 4t positive or negative? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAApCAYAAAAPgl6QAAAGXklEQVR4nO3dXWxTdRzG8ecU2429MCZvEgWXKIYsJBswykYw4o2JEhJLwIgXOEKCQlDRG/TCqHEhcgWakUBCFElYCCbDBMULvaBbYtqObjQ2DCVKBTUDJEK2sbUdO150LSzsBWM5/5Z+P1fnnHbJk5xePPnvd/7Hsm3bFgDkkZaWFlmWpQ0bNpiOAodwzwHkk4dMBwCA/+rSpUumI8Bh3HMA+eSeC3YymVQ4HFYwGNTs2bNZRYAjrsd79WnkK536s0un/uxSVfkjqp2... | [
"positive",
"negative"
] | null | 0 |
math | grade-2 | cubes | true | false | Which shape is a cube? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAXZUlEQVR4nO2dX2wTV77Hv2n+OcGxzdrOH7BJqGxDdkGZBpa9RNBSgnSblmqh0obtviR0H/b2StvSZXUfgq4apAsrXaksdFfq9qGQPC2bSrfpJht6dQmbFghXWUgcgTbEziUOk2yC/yj+V8fOH+U+TM4kjp0SyIxnxj6fl4TxMD7x+fjM7/zm/MlaXFxcnJoFRiJAaAGYXwSFIjtysoCibMBaCJTkAVlTscXFvqDUxaJQ1s+PNECOM8L9oywP2LGJs5pCkRuhBWD... | 1 |
math | grade-4 | compare-fractions-with-like-numerators-or-denominators-using-models | false | true | Which fraction is less? | "iVBORw0KGgoAAAANSUhEUgAAAtgAAAC5CAYAAAAS5EjTAAA5xUlEQVR4nO3de3RTZbo/8G8JcAoISUcHAS9tqAwzUGxAlFFamsp4RhhqC6MDjjgtUn5U0aHVIxRUKKgg6JFwFGxdFYLAQGGOLZSLS4UGG5xBwBbazoBDmwTlYs9oE6QWuZjfH2FvktJLLnvvJO33sxZLaZP9viXPWjy8+9nPE+F0Op0gIiIiIiJJdAn2BoiIiIiIOhIm2EREREREEmKCTUREREQkISbYREREREQSYoJ91fDhwxEREdHir2+//TbY26Mw43A4Woyll15... | [
"7/12",
"5/12"
] | null | 1 |
math | grade-8 | nets-of-three-dimensional-figures | true | true | Which net will make this figure? | "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAl60lEQVR4nNV9eZxdVZXut9be+5x7bw0ZqZCASUgCGSAMAokIQSY1URygRSBCiCAoIiiTPofWfv1+ar/XrS2i9u/51OcT/UmL2BCaBFqfD2wUIYwqKKBCEiCAYUpVKlVQ9+z3x15r730qQUKmSja/St25zl3fWd+3pn0g773Hbr7mHXQwHnnoITw/sHGkD2WbF4/0AWzr+tsPfQQrf3M/XhgcwLRRY0f6cLZ9+d14/e8zzvMAaj8nHTxvpA9rmxZ5v3tS1kv9/Zg7czY... | null | [
"iVBORw0KGgoAAAANSUhEUgAAASoAAADlCAYAAADk87r6AABJFElEQVR4nO29e5xU1Znv/V1r712XvtNAc1VawQtgpEWUKBgwCYnJmAPqO3GiMbTJyajJJJDMJHgmOQcy78lMMu+ZGTSTMzrjGdqZyTs5OmijCdGQN7RnQMULaRwBDRhauQjNrWluXbe93z/WWrt2Nahcuruqq9f382mqunpX1apdVT+e37Oe9SwBBFhKhiAI2JuG7SfgaA6y9t2xDEFcAdUOXFIBo2IgsEJVUuxNBbzUXexRWCylw8wacIs9CEsh206oyzExuKx... | 0 |
math | pre-k | represent-numbers-with-shapes-up-to-3 | true | false | Which group has 3 circles? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK4AAACuCAYAAACvDDbuAAAHJklEQVR4nO3dXWjd9R3H8c85OSdp0iQ1TWvVtLZbcH3QPTDGMvYgpMPpkF0M3S7awXA68FJkuxKRIexiIrsQvJq0yOrFcAMtjjVbO9iGzDAnlrL1YaZZ07SJSZb2JDlJzjnJ34tjwG2d5v97+P/zHe8XiJZyfv/fJ31bk4bEQpIkyURN+kdVmluRGomADadUkLpapDs6pB2tUmFiOUmGK3lfC1i/gW6pdKHa/MGtrdLezc2qgY1mbkU6tyBdrUnnq1Kx0mj+BNF... | 0 |
math | grade-8 | compare-linear-functions-tables-graphs-and-equations | false | true | Function A and Function B are linear functions. Which statement is true? | "iVBORw0KGgoAAAANSUhEUgAAAjcAAAGlCAYAAAAGbtd7AABP+klEQVR4nO3dfXxT9d038E+SJk2atrQUWgptocUbRVsoCrSowEARGD4yHnyYMjZl914yHwZuTje8dD5MJ9PtEvVC5rObys0GwnUr120BAaWgTjAoVCUttNSmUBraNM/J7/6jJrbQNknPSU6Sft6vly8kOf2eb8L39+sv53xzjkoIIUBERESUJNRKJ0BEREQkJy5uiIiIKKlwcUNERERJJazFzZAhQ6BSqXr9b//+/VFOM3wvv/wyVCoVysvLY77vDz74IPieXHjhhTH... | [
"The y-value of Function A when x=\n–\n2 is greater than the y-value of Function B when x=\n–\n2.",
"The y-value of Function A when x=\n–\n2 is less than the y-value of Function B when x=\n–\n2."
] | null | 0 |
science | grade-2 | identify-mammals-birds-fish-reptiles-and-amphibians | true | true | Fish live underwater. They have fins, not limbs. A manta ray is an example of a fish. Select the fish below. | "iVBORw0KGgoAAAANSUhEUgAAAtMAAADMCAYAAACx6y9WAAD0h0lEQVR4nOy9eZwkVZX2/z3n3ojI6uoN6AZsBRGQTUABGRQEBTdwRwFF3HCccdyFUUHn54LOqzOvjvqq6IgbCq4oLjDj4DaDAjoIIu4KgoiIgmy9VGVGxL3n98eJzKqmWRooZUbj8ZNSlRkZceNGZvVzTzznecTMrG1bcs706NGjR48ePXr06NHj9qGqxBiRpmmsJ9I9evTo0aNHjx49etwxqCraE+kePXr06NGjR48ePe44cs7o3T2IHj169OjRo0ePHj3+t6In0z1... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA4IAAADMCAYAAAAmsx3gAAEAAElEQVR4nOz9d7gkV3ntj3/23hU6nJznTI6akWaUhYQSSoDIQQFkGZAw9jUgDNKFC7YvYDA/8L3YhmsMmGiwwBgLC4lgjACBhCQUUZZGo9HkdPI5HSvs8P2junvOKI7QEPyj1/P0M326q6t27a7qqVXvetcSzjmntcZaSxtttNFGG2200UYbbbTxzJBS4nked5bgsCJ0qt/2iNpo48lRNvBIFfYm0OvBqT3Z67JNAttoo4022mijjTbaaOPZwVqL1rpNAtv4nUe... | 0 |
science | grade-6 | use-scientific-names-to-classify-organisms | true | true | This organism is a smooth newt. Its scientific name is Lissotriton vulgaris. Select the organism in the same genus as the smooth newt. | "iVBORw0KGgoAAAANSUhEUgAAAvgAAADMCAYAAAAGVtdxAAEAAElEQVR4nOy9d5wlR3nu/63qkybn2dmco8Iq7KIAkpCEfIlCBAMSxoCwycEIW2BfGyzAggv8MDkKTDSShawrYTK2UESstJI2KOyuNu/knE/orvr9UVXdfXZXCYZwRT18htk5p093VXXP6Hnfet7nFVprHYYhSik8PDw8PDw8PDw8PH6/kFKSyWTm7nye3Ht4eHh4eHh4eHj84aCUIgzDOTuf9OTew8PDw8PDw8PD4w+LueTkcs7O5OHh4eHh4eHh4eHxB4cn+B4eHh4... | null | [
"iVBORw0KGgoAAAANSUhEUgAAA6IAAADMCAYAAABp7h4wAAEAAElEQVR4nOydeZxdRZn3v0/Vub0l6c6ekJCQlbCHJciigIDM4Ia4jAqOo+K4o444LzqbDuogr/o6476hg9sIIoPC4IK4gIAQCJCEfcm+71unl3tP1fvHU1Xn3O7OpnEZPY+fNt33nntOnao6l/rV7/f8HvHe+0ajgXOOKqqooooqqqiiiiqqqOL3G8YYsiw7aOcTkYN2riqq+F2FqUBoFVVUUUUVVVRRRRVV/OHCOUej0fhDN6OKKn6vkVUgtIoqqqiiiiqqqKK... | 0 |
science | grade-3 | identify-plants-and-animals | true | false | Select the plant. | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAAK8AAADeCAYAAABL7FARAAEAAElEQVR4nOz9WZCtaXaehz3f9A97zjnPWFWn5qGru3pA9YCeCGISSBCgKBEOiZZF0w4rFDYdthymwtKFww5f0OGgrmTJFwrSDomUIIAQCYIg2AC7MTS6u7q7qrrm4dSZT548Oezc0z99ky++faooRTuig3UjR+CPqDqZ++TJ3Ln3+te31vu+613ipVmMT/ZhqPiz68+u/1FeCw/vrOCggw0NPz1Jj8s/C9w/u/7Hfg0VPNlPHy/9R4/LPwvcP7v+/+F6EKc2fvS... | 1 |
math | pre-k | represent-numbers-up-to-10 | true | false | Which group has 6 stars? | null | null | [
"iVBORw0KGgoAAAANSUhEUgAAARwAAAEcCAYAAAAV9AvgAAAMq0lEQVR4nO3dsW9T9xqH8W+gNVKvIQxWb5GHUpTcSyY7C52sRCoLlqrGlVJ5S8QfELO2DG0nRqwmc2PWComkVdMxpmFi4TClvUHBHSBc1YObuEjmFvkOll07OU7OcU5eY5/ns0AEPv4tPPJL8p4zUq/X6y9eSU9eSnuvpb/qAoBAvDUinT0tjb8j/TMijbyo1esPd/t9LADD7sNz0ltbLxtfXIhI//5Ho0YAEIS919Kvf0o7r6T/vJRO7f7V+ANiAyBoZ0832iJ... | 1 |
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