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.

15___12
4___1
21___
6___3
6___1
___145
___105
2010___
___910
___13
15___3
6___1
21___
19___6
___216
111___
3___1
16___3
159___
10___9
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