MathApexDE

Printable worksheet

Addition within 20 Worksheet

Solve twenty carefully ordered addition questions with generous writing space, then check the same facts on the optional answer page.

Addition within 20

Solve the addition problems. Write each answer in the space provided.

Name: Date:

Hint: Try making 10 first.

  1. 2 + 4 =
  2. 1 + 1 =
  3. 3 + 3 =
  4. 2 + 2 =
  5. 3 + 6 =
  6. 4 + 5 =
  7. 2 + 11 =
  8. 3 + 14 =
  9. 3 + 13 =
  10. 6 + 13 =
  11. 1 + 15 =
  12. 5 + 14 =
  13. 4 + 16 =
  14. 6 + 8 =
  15. 3 + 8 =
  16. 7 + 9 =
  17. 9 + 11 =
  18. 2 + 18 =
  19. 3 + 11 =
  20. 3 + 17 =
20 questionsMathApex

What is on the worksheet?

The twenty questions begin with familiar sums, continue with addition within 20 without crossing ten, and then practise making ten. Two final mixed questions bring the ideas together without repeating a fact.

Try making ten first

When a sum crosses ten, look for the part that completes ten before adding what remains. Write each answer on the line, then show the answer key or continue with the matching online practice.

Generate a worksheet →

Calm and ready to print

MathApex uses necessary technologies to run this website. With your permission, we also use Google Analytics to understand how the website is used.