Number Bonds to 20 Worksheet
Nine number bonds with wholes from 11 to 20 and one number missing. A free grade 1 number bonds worksheet with answer key.
Download the free PDF
Page 2 of the PDF is the answer key.
How to help your child
- The big circle is the whole. The two small circles are its parts.
- If a part is missing, take the other part away from the whole.
- Page 2 of the PDF is the answer key, so you can check together.