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.

10___9
8___5
17___9
___11
19___13
21___
1712___
___59
___72
14___4
101___
1613___
1713___
1513___
___88
___109
20___13
42___
171___
___28
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