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___11
3___1
17___7
83___
___611
19___1
___171
21___
102___
8___6
___23
___101
109___
___15
149___
1915___
1810___
21___
8___4
10___6
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