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.

___63
5___4
2___1
10___5
1210___
12___4
32___
43___
___810
52___
6___4
145___
14___10
43___
20___3
3___1
163___
135___
51___
7___3
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