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___
___13
9___3
19___1
20___5
54___
5___4
17___10
17___4
12___10
___19
1512___
18___2
20___10
7___6
31___
___106
___13
1614___
42___
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