Case File #1
Suspect Subtraction Statement:
15 - 7 = 8
Is this subtraction answer correct? Let's check with addition!
Step 1: Build the Addition Check Equation
Drag or tap numbers into the slots to set up: Difference + Subtrahend = Minuend
Available Number Tiles
Step 2: Final Verdict
Based on your addition check, was the original subtraction statement correct?
Tip: Sum should match Minuend if subtraction is true!