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Ages 5–7

Adding within 12

Combine two numbers up to 12 to build early mental addition. Review suitability for your learners before teaching.

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Worksheet StudioMaths practice

Adding within 12

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

Name ____________________Date ______________
  1. 1.0 + 4 = blank
  2. 2.8 + 6 = blank
  3. 3.4 + 8 = blank
  4. 4.3 + 3 = blank
  5. 5.5 + 11 = blank
  6. 6.7 + 7 = blank
  7. 7.9 + 3 = blank
  8. 8.2 + 1 = blank
  9. 9.9 + 9 = blank
  10. 10.0 + 3 = blank
  11. 11.1 + 9 = blank
  12. 12.11 + 3 = blank
One small step. One stronger skill.12 questions · Seed 51
View the answer key
Worksheet StudioAnswer key

Adding within 12

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 4 = 4
  2. 2.8 + 6 = 14
  3. 3.4 + 8 = 12
  4. 4.3 + 3 = 6
  5. 5.5 + 11 = 16
  6. 6.7 + 7 = 14
  7. 7.9 + 3 = 12
  8. 8.2 + 1 = 3
  9. 9.9 + 9 = 18
  10. 10.0 + 3 = 3
  11. 11.1 + 9 = 10
  12. 12.11 + 3 = 14
One small step. One stronger skill.12 questions · Seed 51
Worksheet StudioMaths practice

Adding within 12

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

Name ____________________Date ______________
  1. 1.0 + 4 = blank
  2. 2.8 + 6 = blank
  3. 3.4 + 8 = blank
  4. 4.3 + 3 = blank
  5. 5.5 + 11 = blank
  6. 6.7 + 7 = blank
  7. 7.9 + 3 = blank
  8. 8.2 + 1 = blank
  9. 9.9 + 9 = blank
  10. 10.0 + 3 = blank
  11. 11.1 + 9 = blank
  12. 12.11 + 3 = blank
One small step. One stronger skill.12 questions · Seed 51
Worksheet StudioAnswer key

Adding within 12

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 4 = 4
  2. 2.8 + 6 = 14
  3. 3.4 + 8 = 12
  4. 4.3 + 3 = 6
  5. 5.5 + 11 = 16
  6. 6.7 + 7 = 14
  7. 7.9 + 3 = 12
  8. 8.2 + 1 = 3
  9. 9.9 + 9 = 18
  10. 10.0 + 3 = 3
  11. 11.1 + 9 = 10
  12. 12.11 + 3 = 14
One small step. One stronger skill.12 questions · Seed 51