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MathsAges 4-6

Addition fluency

Add two whole numbers with confidence and verify the total by counting on or partitioning. Review suitability for your learners before teaching.

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Age band:Ages 4-6Ages 7-9

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Worksheet StudioPractice pack · Ages 4-6

Addition fluency

Take your time. Show your thinking.

  1. 1. Calculate 9 + 1.

    9 · 1 · Addition fluency

  2. 2. Calculate 2 + 7.

    2 · 7 · Addition fluency

  3. 3. Calculate 6 + 1.

    6 · 1 · Addition fluency

  4. 4. Calculate 5 + 9.

    5 · 9 · Addition fluency

  5. 5. Calculate 8 + 12.

    8 · 12 · Addition fluency

  6. 6. Calculate 3 + 3.

    3 · 3 · Addition fluency

  7. 7. Calculate 9 + 4.

    9 · 4 · Addition fluency

  8. 8. Calculate 6 + 6.

    6 · 6 · Addition fluency

  9. 9. Calculate 8 + 10.

    8 · 10 · Addition fluency

  10. 10. Calculate 8 + 2.

    8 · 2 · Addition fluency

  11. 11. Calculate 9 + 9.

    9 · 9 · Addition fluency

  12. 12. Calculate 3 + 11.

    3 · 11 · Addition fluency
12 questions · Seed 45 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6

Addition fluency

Answers and reasoning. Review before teaching.

  1. 1. Calculate 9 + 1.

    10

    Count on or partition to add 9 and 1: 9 + 1 = 10.

  2. 2. Calculate 2 + 7.

    9

    Count on or partition to add 2 and 7: 2 + 7 = 9.

  3. 3. Calculate 6 + 1.

    7

    Count on or partition to add 6 and 1: 6 + 1 = 7.

  4. 4. Calculate 5 + 9.

    14

    Count on or partition to add 5 and 9: 5 + 9 = 14.

  5. 5. Calculate 8 + 12.

    20

    Count on or partition to add 8 and 12: 8 + 12 = 20.

  6. 6. Calculate 3 + 3.

    6

    Count on or partition to add 3 and 3: 3 + 3 = 6.

  7. 7. Calculate 9 + 4.

    13

    Count on or partition to add 9 and 4: 9 + 4 = 13.

  8. 8. Calculate 6 + 6.

    12

    Count on or partition to add 6 and 6: 6 + 6 = 12.

  9. 9. Calculate 8 + 10.

    18

    Count on or partition to add 8 and 10: 8 + 10 = 18.

  10. 10. Calculate 8 + 2.

    10

    Count on or partition to add 8 and 2: 8 + 2 = 10.

  11. 11. Calculate 9 + 9.

    18

    Count on or partition to add 9 and 9: 9 + 9 = 18.

  12. 12. Calculate 3 + 11.

    14

    Count on or partition to add 3 and 11: 3 + 11 = 14.

12 questions · Seed 45 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6

Addition fluency

Take your time. Show your thinking.

  1. 1. Calculate 9 + 1.

    9 · 1 · Addition fluency

  2. 2. Calculate 2 + 7.

    2 · 7 · Addition fluency

  3. 3. Calculate 6 + 1.

    6 · 1 · Addition fluency

  4. 4. Calculate 5 + 9.

    5 · 9 · Addition fluency

  5. 5. Calculate 8 + 12.

    8 · 12 · Addition fluency

  6. 6. Calculate 3 + 3.

    3 · 3 · Addition fluency

  7. 7. Calculate 9 + 4.

    9 · 4 · Addition fluency

  8. 8. Calculate 6 + 6.

    6 · 6 · Addition fluency

  9. 9. Calculate 8 + 10.

    8 · 10 · Addition fluency

  10. 10. Calculate 8 + 2.

    8 · 2 · Addition fluency

  11. 11. Calculate 9 + 9.

    9 · 9 · Addition fluency

  12. 12. Calculate 3 + 11.

    3 · 11 · Addition fluency
12 questions · Seed 45 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6

Addition fluency

Answers and reasoning. Review before teaching.

  1. 1. Calculate 9 + 1.

    10

    Count on or partition to add 9 and 1: 9 + 1 = 10.

  2. 2. Calculate 2 + 7.

    9

    Count on or partition to add 2 and 7: 2 + 7 = 9.

  3. 3. Calculate 6 + 1.

    7

    Count on or partition to add 6 and 1: 6 + 1 = 7.

  4. 4. Calculate 5 + 9.

    14

    Count on or partition to add 5 and 9: 5 + 9 = 14.

  5. 5. Calculate 8 + 12.

    20

    Count on or partition to add 8 and 12: 8 + 12 = 20.

  6. 6. Calculate 3 + 3.

    6

    Count on or partition to add 3 and 3: 3 + 3 = 6.

  7. 7. Calculate 9 + 4.

    13

    Count on or partition to add 9 and 4: 9 + 4 = 13.

  8. 8. Calculate 6 + 6.

    12

    Count on or partition to add 6 and 6: 6 + 6 = 12.

  9. 9. Calculate 8 + 10.

    18

    Count on or partition to add 8 and 10: 8 + 10 = 18.

  10. 10. Calculate 8 + 2.

    10

    Count on or partition to add 8 and 2: 8 + 2 = 10.

  11. 11. Calculate 9 + 9.

    18

    Count on or partition to add 9 and 9: 9 + 9 = 18.

  12. 12. Calculate 3 + 11.

    14

    Count on or partition to add 3 and 11: 3 + 11 = 14.

12 questions · Seed 45 · Age guidance, not curriculum certification