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Ages 7–9

Two-digit addition

Add numbers up to 50 and verify with inverse subtraction. Review suitability for your learners before teaching.

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Worksheet StudioMaths practice

Two-digit addition

Take your time. Show your thinking. You've got this.

Name ____________________Date ______________
  1. 1.0 + 12 = blank
  2. 2.3 + 29 = blank
  3. 3.20 + 24 = blank
  4. 4.38 + 45 = blank
  5. 5.7 + 8 = blank
  6. 6.24 + 0 = blank
  7. 7.5 + 24 = blank
  8. 8.30 + 29 = blank
  9. 9.42 + 38 = blank
  10. 10.15 + 16 = blank
  11. 11.43 + 15 = blank
  12. 12.49 + 33 = blank
One small step. One stronger skill.12 questions · Seed 50
View the answer key
Worksheet StudioAnswer key

Two-digit addition

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 12 = 12
  2. 2.3 + 29 = 32
  3. 3.20 + 24 = 44
  4. 4.38 + 45 = 83
  5. 5.7 + 8 = 15
  6. 6.24 + 0 = 24
  7. 7.5 + 24 = 29
  8. 8.30 + 29 = 59
  9. 9.42 + 38 = 80
  10. 10.15 + 16 = 31
  11. 11.43 + 15 = 58
  12. 12.49 + 33 = 82
One small step. One stronger skill.12 questions · Seed 50
Worksheet StudioMaths practice

Two-digit addition

Take your time. Show your thinking. You've got this.

Name ____________________Date ______________
  1. 1.0 + 12 = blank
  2. 2.3 + 29 = blank
  3. 3.20 + 24 = blank
  4. 4.38 + 45 = blank
  5. 5.7 + 8 = blank
  6. 6.24 + 0 = blank
  7. 7.5 + 24 = blank
  8. 8.30 + 29 = blank
  9. 9.42 + 38 = blank
  10. 10.15 + 16 = blank
  11. 11.43 + 15 = blank
  12. 12.49 + 33 = blank
One small step. One stronger skill.12 questions · Seed 50
Worksheet StudioAnswer key

Two-digit addition

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 12 = 12
  2. 2.3 + 29 = 32
  3. 3.20 + 24 = 44
  4. 4.38 + 45 = 83
  5. 5.7 + 8 = 15
  6. 6.24 + 0 = 24
  7. 7.5 + 24 = 29
  8. 8.30 + 29 = 59
  9. 9.42 + 38 = 80
  10. 10.15 + 16 = 31
  11. 11.43 + 15 = 58
  12. 12.49 + 33 = 82
One small step. One stronger skill.12 questions · Seed 50