Number bonds worksheets

By grade

• Kindergarten Right on level
• 1st Grade A step harder

What students need to know

The two parts always join together to make the whole.

This skill runs from kindergarten through 1st grade. Pick a grade above for level-matched sentences, teaching notes, and worksheets.

Number bonds across the grades

Kindergarten

Number bonds worksheets show kindergartners a whole split into two parts in connected circles, with one number missing. The sheets lean on decomposing numbers and finding the partner that makes ten, so numbers become things you can pull apart and put back together.

1st grade

In first grade, number bonds become a fluency tool: each bond within 10 is missing its whole or one part, and your child fills it in from memory. Knowing 7 is 5 and 2 without counting is what makes bigger addition feel easy later.