Challenge students to put their addition skills to work as they fill in the missing numbers so each row, column, and diagonal add up!
- The missing numbers are integers between 0 and 9.
- The numbers in each row add up to the number at the right of the row.
- The numbers in each column add up to the number at the bottom of the column.
- The numbers in each diagonal line add up the number to the right and above or below the diagonal.
Click for an answer key for all of the puzzles.

It All Adds Up Puzzle # 1
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It All Adds Up Puzzle # 36
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