Math Playground for Teachers
Reduce each number to zero by placing subtraction discs on the grid
Blue discs only work along diagonal lines.
Red discs only work along
horizontal and vertical lines.
Sum Points - Learning Connections
Problem Solving - look for the best sequence of steps
Numerical Thinking - reason about numbers and perform mental math
- use horizontal, vertical, and diagonal directions
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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