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.

___511
63___
139___
142___
51___
41___
___612
11___5
11___2
17___3
21___
12___9
81___
135___
136___
2___1
9___7
11___1
___11
21___
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