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.

15___8
___59
___57
___513
51___
177___
81___
13___4
20___7
___86
12___3
109___
___11
19___13
87___
53___
___33
71___
___141
16___4
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