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.

18___13
___21
133___
9___5
___37
1912___
142___
13___7
1310___
1311___
___57
119___
13___3
1210___
87___
75___
___63
1210___
___125
9___2
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