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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 + 11 = blank
  2. 2.8 + 0 = blank
  3. 3.6 + 9 = blank
  4. 4.8 + 4 = blank
  5. 5.1 + 2 = blank
  6. 6.1 + 10 = blank
  7. 7.10 + 3 = blank
  8. 8.2 + 7 = blank
  9. 9.4 + 10 = blank
  10. 10.5 + 6 = blank
  11. 11.8 + 7 = blank
  12. 12.4 + 0 = blank
One small step. One stronger skill.12 questions · Seed 46
View the answer key
Worksheet StudioAnswer key

Adding within 12

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 11 = 11
  2. 2.8 + 0 = 8
  3. 3.6 + 9 = 15
  4. 4.8 + 4 = 12
  5. 5.1 + 2 = 3
  6. 6.1 + 10 = 11
  7. 7.10 + 3 = 13
  8. 8.2 + 7 = 9
  9. 9.4 + 10 = 14
  10. 10.5 + 6 = 11
  11. 11.8 + 7 = 15
  12. 12.4 + 0 = 4
One small step. One stronger skill.12 questions · Seed 46
Worksheet StudioMaths practice

Adding within 12

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

Name ____________________Date ______________
  1. 1.0 + 11 = blank
  2. 2.8 + 0 = blank
  3. 3.6 + 9 = blank
  4. 4.8 + 4 = blank
  5. 5.1 + 2 = blank
  6. 6.1 + 10 = blank
  7. 7.10 + 3 = blank
  8. 8.2 + 7 = blank
  9. 9.4 + 10 = blank
  10. 10.5 + 6 = blank
  11. 11.8 + 7 = blank
  12. 12.4 + 0 = blank
One small step. One stronger skill.12 questions · Seed 46
Worksheet StudioAnswer key

Adding within 12

Use this page to check your work.

Name ____________________Date ______________
  1. 1.0 + 11 = 11
  2. 2.8 + 0 = 8
  3. 3.6 + 9 = 15
  4. 4.8 + 4 = 12
  5. 5.1 + 2 = 3
  6. 6.1 + 10 = 11
  7. 7.10 + 3 = 13
  8. 8.2 + 7 = 9
  9. 9.4 + 10 = 14
  10. 10.5 + 6 = 11
  11. 11.8 + 7 = 15
  12. 12.4 + 0 = 4
One small step. One stronger skill.12 questions · Seed 46