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.

20___13
129___
15___12
2___1
___59
147___
4___1
1812___
___310
10___2
___133
___513
3___2
21___
21___
182___
122___
52___
19___15
___810
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