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.

2017___
21___
___143
13___7
10___6
___21
1815___
19___18
9___5
61___
___45
137___
32___
14___9
52___
___114
31___
___68
7___4
1810___
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