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___12
19___17
12___7
42___
16___9
5___4
___143
___313
81___
3___1
15___10
___213
14___9
71___
___17
189___
10___5
81___
117___
5___1
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