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.

___513
63___
21___
1311___
41___
___31
12___3
4___1
___21
72___
1916___
10___7
9___4
41___
152___
___613
2010___
18___13
1918___
1412___
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