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.

12___9
___45
12___4
1610___
145___
10___5
31___
159___
21___
___11
9___7
___41
5___4
21___
141___
17___10
12___11
19___3
2___1
3___1
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