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.

31___
32___
204___
21___
145___
21___
12___9
11___3
12___8
18___4
9___1
61___
3___1
___21
139___
___135
___515
52___
___56
___143
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