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Puzzles of the Week

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Sum Groups 10-a

This puzzle is filled with numbers that can be grouped together to sum to 10. Each group of numbers that sum to 10 must be connected, and each square must share a side with at least one other square in the group.

THE CHALLENGE

Divide each of these squares into groups of two or three numbers that add up to 10.

EXPLORATION

Make some of these puzzles for others to solve.