SumXMinus – Negative Math

Created by a Math Teacher

Train your brain in just 30 seconds.

QuickMath Series

A fast and fun way to master mental math.

Can you find the right number pairs? Use both positive and negative numbers to reach the target.

Example: (-2) + (-4) = -6 (-4) + (+5) = 1

Challenge yourself and improve:

• Negative number understanding • Mental calculation speed • Focus and thinking skills From upper elementary to middle school level.

QuickMath Series • SumX – Number Pair Puzzle • SumXMinus – Negative Number Training • Common Divisor – Divisor Brain Training • Exponent – Power Calculation Challenge • Decimal Finder – Number Line Intuition