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___
9___5
1514___
7___4
19___17
12___7
6___5
116___
20___7
___61
___45
17___8
52___
172___
21___
53___
2016___
___105
3___1
21___
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