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.

15___10
3___2
___21
137___
18___15
19___13
196___
___13
129___
159___
___144
___86
2015___
2___1
1813___
84___
___310
11___9
7___4
20___6
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