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.

2___1
107___
87___
20___1
21___
13___3
116___
12___3
1716___
1615___
20___18
1813___
104___
4___3
2013___
___51
13___7
12___9
136___
___21
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