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___
121___
128___
16___12
10___1
___21
42___
15___3
16___7
72___
9___4
20___7
6___5
104___
10___6
20___3
___142
169___
1410___
3___2
🔄 Generate New