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.

121___
43___
1913___
___21
15___6
16___9
21___
8___7
21___
10___9
12___7
___68
___181
5___4
10___6
10___2
4___2
18___9
2011___
41___
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