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.

1512___
14___4
4___1
1815___
17___8
19___7
7___3
21___
4___2
3___2
41___
32___
6___2
1918___
131___
21___
1610___
177___
21___
172___
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