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.

54___
145___
___17
81___
105___
2___1
156___
84___
5___1
21___
___51
2___1
___46
85___
75___
21___
118___
1613___
21___
___63
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