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.

43___
20___12
___163
___37
64___
___414
20___8
20___15
174___
___15
145___
74___
62___
153___
166___
41___
17___13
___317
156___
31___
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