Small practice. Bright discoveries.Explore the free starter collection
worksheetstudio.
Sign in
Back to worksheets
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.

New variationTry interactive challengeBrowse templates
Age band:Ages 4-6Ages 7-9

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 4-6

Addition fluency

Take your time. Show your thinking.

  1. 1. Calculate 10 + 9.

    10 · 9 · Addition fluency

  2. 2. Calculate 2 + 7.

    2 · 7 · Addition fluency

  3. 3. Calculate 4 + 8.

    4 · 8 · Addition fluency

  4. 4. Calculate 10 + 7.

    10 · 7 · Addition fluency

  5. 5. Calculate 9 + 5.

    9 · 5 · Addition fluency

  6. 6. Calculate 2 + 3.

    2 · 3 · Addition fluency

  7. 7. Calculate 5 + 12.

    5 · 12 · Addition fluency

  8. 8. Calculate 10 + 4.

    10 · 4 · Addition fluency

  9. 9. Calculate 2 + 1.

    2 · 1 · Addition fluency

  10. 10. Calculate 4 + 12.

    4 · 12 · Addition fluency

  11. 11. Calculate 6 + 4.

    6 · 4 · Addition fluency

  12. 12. Calculate 5 + 5.

    5 · 5 · Addition fluency
12 questions · Seed 44 · 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 10 + 9.

    19

    Count on or partition to add 10 and 9: 10 + 9 = 19.

  2. 2. Calculate 2 + 7.

    9

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

  3. 3. Calculate 4 + 8.

    12

    Count on or partition to add 4 and 8: 4 + 8 = 12.

  4. 4. Calculate 10 + 7.

    17

    Count on or partition to add 10 and 7: 10 + 7 = 17.

  5. 5. Calculate 9 + 5.

    14

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

  6. 6. Calculate 2 + 3.

    5

    Count on or partition to add 2 and 3: 2 + 3 = 5.

  7. 7. Calculate 5 + 12.

    17

    Count on or partition to add 5 and 12: 5 + 12 = 17.

  8. 8. Calculate 10 + 4.

    14

    Count on or partition to add 10 and 4: 10 + 4 = 14.

  9. 9. Calculate 2 + 1.

    3

    Count on or partition to add 2 and 1: 2 + 1 = 3.

  10. 10. Calculate 4 + 12.

    16

    Count on or partition to add 4 and 12: 4 + 12 = 16.

  11. 11. Calculate 6 + 4.

    10

    Count on or partition to add 6 and 4: 6 + 4 = 10.

  12. 12. Calculate 5 + 5.

    10

    Count on or partition to add 5 and 5: 5 + 5 = 10.

12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6

Addition fluency

Take your time. Show your thinking.

  1. 1. Calculate 10 + 9.

    10 · 9 · Addition fluency

  2. 2. Calculate 2 + 7.

    2 · 7 · Addition fluency

  3. 3. Calculate 4 + 8.

    4 · 8 · Addition fluency

  4. 4. Calculate 10 + 7.

    10 · 7 · Addition fluency

  5. 5. Calculate 9 + 5.

    9 · 5 · Addition fluency

  6. 6. Calculate 2 + 3.

    2 · 3 · Addition fluency

  7. 7. Calculate 5 + 12.

    5 · 12 · Addition fluency

  8. 8. Calculate 10 + 4.

    10 · 4 · Addition fluency

  9. 9. Calculate 2 + 1.

    2 · 1 · Addition fluency

  10. 10. Calculate 4 + 12.

    4 · 12 · Addition fluency

  11. 11. Calculate 6 + 4.

    6 · 4 · Addition fluency

  12. 12. Calculate 5 + 5.

    5 · 5 · Addition fluency
12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6

Addition fluency

Answers and reasoning. Review before teaching.

  1. 1. Calculate 10 + 9.

    19

    Count on or partition to add 10 and 9: 10 + 9 = 19.

  2. 2. Calculate 2 + 7.

    9

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

  3. 3. Calculate 4 + 8.

    12

    Count on or partition to add 4 and 8: 4 + 8 = 12.

  4. 4. Calculate 10 + 7.

    17

    Count on or partition to add 10 and 7: 10 + 7 = 17.

  5. 5. Calculate 9 + 5.

    14

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

  6. 6. Calculate 2 + 3.

    5

    Count on or partition to add 2 and 3: 2 + 3 = 5.

  7. 7. Calculate 5 + 12.

    17

    Count on or partition to add 5 and 12: 5 + 12 = 17.

  8. 8. Calculate 10 + 4.

    14

    Count on or partition to add 10 and 4: 10 + 4 = 14.

  9. 9. Calculate 2 + 1.

    3

    Count on or partition to add 2 and 1: 2 + 1 = 3.

  10. 10. Calculate 4 + 12.

    16

    Count on or partition to add 4 and 12: 4 + 12 = 16.

  11. 11. Calculate 6 + 4.

    10

    Count on or partition to add 6 and 4: 6 + 4 = 10.

  12. 12. Calculate 5 + 5.

    10

    Count on or partition to add 5 and 5: 5 + 5 = 10.

12 questions · Seed 44 · Age guidance, not curriculum certification