Free printable number bonds
Number bonds are part-part-whole diagrams: two small circles add up to the big circle they hang from. This sheet shows eight of those diagrams in four rows of two. Sometimes a part is missing, and sometimes the whole is missing, so children have to add or subtract depending on which circle is blank. It is a staple of early addition for kindergarten and first grade, and the empty circles give a clear place to write.
Solution page included
Peek at the solution
The free download is a high-resolution PNG sized for a 6x9 inch page, plus a matching solution image with every blank filled. No signup is required. Print the puzzle, complete the eight missing numbers, and check the answer key.
How to play
- Look at one bond: a large circle connected to two smaller circles.
- If a small circle is empty, subtract the given part from the whole to find the missing part.
- If the large circle is empty, add the two small circles to find the whole.
- Write the missing number and continue through all eight diagrams.
- Check your eight answers on the solution image.
Print at 100% scale on letter or A4 paper so the eight circle diagrams stay large enough for a young pencil.
Frequently asked questions
Where is the Number Bonds answer key?
It is the second free PNG on this page. That image fills every blank circle so you can see the completed bonds. Download it with the puzzle and print it separately if you want children to work without seeing the answers.
Is this Number Bonds worksheet free?
Yes. You can download the puzzle and the solution as PNGs with no account. Print them for home practice or a classroom math center. There is no charge and no email gate on this page.
Who are these number bonds for?
They suit kindergarten and first-grade students who are learning that two parts make a whole, using totals such as 6, 7, 9, and 10. The mix of missing parts and missing wholes gives a little extra thinking without leaving that number range. Parents also use the page as a five-minute addition warm-up.
How should I print the bond diagrams?
Print the PNG at 100% scale on letter or A4 paper so the eight circle diagrams stay large enough for a pencil. Leave fit-to-page off; shrinking a 6x9 layout crowds the small circles. Black-and-white printing is plenty, since the page is line art.
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