Number Bonds Worksheet

Fill in the missing numbers to complete each number bond. The two parts at the bottom add up to the whole number at the top.

21___
1210___
3___2
4___1
21___
2___1
9___5
2013___
9___7
7___4
21___
156___
1615___
53___
___811
___16
146___
2___1
___413
7___3
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