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.

13___9
___511
172___
___317
10___5
___11
9___5
74___
___85
5___4
21___
62___
10___6
16___4
199___
51___
32___
1614___
145___
18___12
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