The goal of this game is to reduce all numbers to zero.
50 mental math puzzles to solve in all!
More Games to Play
Overlap Sums - Learning Connections
Essential Skills
Problem Solving - look for the best sequence of steps
Numerical Thinking - play with inverse operations
Spatial Reasoning - visualize changes in the game

Common Core Connection
MP1 - Make sense of problems and persevere in solving them.
MP7 - Look for and make use of structure.
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