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___
6___1
17___8
2___1
2___1
116___
___511
1810___
7___1
21___
10___4
1912___
147___
1710___
1815___
18___12
___513
139___
___515
116___
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