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.

21___
5___4
1511___
___411
1910___
168___
53___
___144
20___3
11___6
18___7
16___13
13___4
10___6
19___13
149___
___51
92___
___45
1615___
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