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.

4___2
21___
___811
3___2
21___
___72
2013___
121___
14___4
2___1
173___
11___5
10___5
10___3
___31
8___5
___63
143___
11___10
8___4
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