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.

___21
18___16
142___
115___
3___1
5___4
___21
15___10
54___
137___
17___12
17___16
7___4
31___
___112
145___
177___
2___1
1510___
1815___
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