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.

1810___
___49
19___12
___13
5___3
13___6
1512___
8___2
21___
3___1
17___6
1713___
20___5
133___
___61
152___
21___
102___
13___9
21___
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