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.

64___
12___3
___12
19___9
___135
17___13
1410___
10___5
4___3
2011___
5___3
15___13
___811
21___
106___
31___
___53
21___
___71
1714___
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