Mathness!Math Worksheets Open the drill maker

Missing addends

Printable missing addends drills for grades 1–2. Each page has one line telling the student what to do and 24, 30 or 45 numbered problems, with an answer key numbered the same way, so checking takes a minute.

Make a sheet

Pick a focus

New problems every time, a second page if you want one, Letter or A4. Print the sheet, the key or both.

Sample sheet and answer key

Missing addends

Within 10 · 24 problems

NameDate

Write the missing number.

Score / 24Time

  1. 1.+9=10
  2. 2.+10=10
  3. 3.+1=10
  4. 4.3+=7
  5. 5.+5=9
  6. 6.+4=8
  7. 7.+0=2
  8. 8.0+=8
  9. 9.3+=10
  10. 10.+0=6
  11. 11.5+=6
  12. 12.1+=9
  13. 13.2+=3
  14. 14.+3=10
  15. 15.+7=9
  16. 16.+3=7
  17. 17.1+=4
  18. 18.+2=3
  19. 19.+1=4
  20. 20.+2=2
  21. 21.+1=2
  22. 22.+4=5
  23. 23.1+=7
  24. 24.2+=10
Mathness! Math Worksheets · © 2026 Zubin KhavarianCode D-MA10-FIRST at mathness.app
Sheet

Missing addends

Within 10 · 24 problems

Answer key

Write the missing number.

Score 24 / 24Time

  1. 1.1+9=10
  2. 2.0+10=10
  3. 3.9+1=10
  4. 4.3+4=7
  5. 5.4+5=9
  6. 6.4+4=8
  7. 7.2+0=2
  8. 8.0+8=8
  9. 9.3+7=10
  10. 10.6+0=6
  11. 11.5+1=6
  12. 12.1+8=9
  13. 13.2+1=3
  14. 14.7+3=10
  15. 15.2+7=9
  16. 16.4+3=7
  17. 17.1+3=4
  18. 18.1+2=3
  19. 19.3+1=4
  20. 20.0+2=2
  21. 21.1+1=2
  22. 22.1+4=5
  23. 23.1+6=7
  24. 24.2+8=10
Mathness! Math Worksheets · © 2026 Zubin KhavarianCode D-MA10-FIRST at mathness.appAnswer key
Answer key

More addition drills