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.

21___
12___4
18___17
___15
17___1
17___12
2___1
11___1
109___
___12
204___
123___
___78
13___6
51___
9___5
1410___
134___
17___4
18___5
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