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___
128___
72___
5___4
109___
146___
82___
___143
43___
94___
1811___
143___
61___
31___
6___4
16___12
___11
___11
19___13
43___
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