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.

51___
6___5
32___
21___
161___
142___
11___6
___21
___42
16___12
17___12
13___4
5___4
___21
76___
189___
___21
1413___
___19
71___
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