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.

13___11
___35
18___4
___144
15___12
___51
21___
13___10
6___5
1918___
___78
18___3
41___
1312___
1815___
42___
___114
3___2
2011___
7___4
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