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.

___45
18___4
10___9
17___6
1911___
101___
14___7
148___
3___1
51___
31___
81___
6___2
4___1
53___
6___2
3___2
8___1
13___10
21___
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