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.

121___
1312___
74___
___312
185___
21___
139___
___412
21___
123___
115___
1211___
108___
4___1
14___5
19___11
5___4
18___17
___411
87___
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