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.

1913___
2___1
___44
___19
4___1
21___
15___4
10___4
19___2
5___1
15___5
11___10
159___
178___
___21
133___
___612
43___
11___9
1715___
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