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.

1513___
___21
43___
154___
14___9
___16
21___
15___1
1310___
12___2
___811
41___
53___
___63
7___1
15___9
16___2
31___
41___
42___
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