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
61___
134___
94___
10___4
1610___
156___
7___1
117___
51___
1513___
1511___
21___
1713___
105___
3___2
2011___
87___
14___9
20___3
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