changed variable name

numerical_reasoning.py

@@ -149,9 +149,9 @@ class NewDataset(datasets.GeneratorBasedBuilder):
                 time_unit = "decades"
                 multiplier = 10
 
-            for key, x1 in enumerate(range(0, 100)):
+            for key, x in enumerate(range(0, 100)):
                 yield key, {
-                    "x1": x1,
+                    "x": x,
                     "time_unit": time_unit,
-                    "y": multiplier*x1,
+                    "y": multiplier*x,
                 }