Update tools.py

tools.py

@@ -1,5 +1,6 @@
-def multiply(a: float, b: float) -> float:
-    """Multiply two numbers.
+def add(a: float, b: float) -> float:
+    """Add two numbers.
+    
     Args:
         a: first float
         b: second float
@@ -7,10 +8,10 @@ def multiply(a: float, b: float) -> float:
     Returns:
         Result float
     """
-    return a * b
+    return a + b
 
-def add(a: float, b: float) -> float:
-    """Add two numbers.
+def subtract(a: float, b: float) -> float:
+    """Subtract two numbers.
     
     Args:
         a: first float
@@ -19,11 +20,10 @@ def add(a: float, b: float) -> float:
     Returns:
         Result float
     """
-    return a + b
-
-def subtract(a: float, b: float) -> float:
-    """Subtract two numbers.
+    return a - b
     
+def multiply(a: float, b: float) -> float:
+    """Multiply two numbers.
     Args:
         a: first float
         b: second float
@@ -31,7 +31,7 @@ def subtract(a: float, b: float) -> float:
     Returns:
         Result float
     """
-    return a - b
+    return a * b
 
 def divide(a: float, b: float) -> float:
     """Divide two numbers.