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MathsAges 7-9

Doubling & halving

Double a whole number or find half of an even number to build rapid mental arithmetic. 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 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 23?

    23 · Doubling & halving

  2. 2. What is double 32?

    32 · Doubling & halving

  3. 3. What is double 13?

    13 · Doubling & halving

  4. 4. What is double 38?

    38 · Doubling & halving

  5. 5. What is double 21?

    21 · Doubling & halving

  6. 6. What is double 37?

    37 · Doubling & halving

  7. 7. What is half of 58?

    58 · Doubling & halving

  8. 8. What is double 26?

    26 · Doubling & halving

  9. 9. What is half of 86?

    86 · Doubling & halving

  10. 10. What is half of 40?

    40 · Doubling & halving

  11. 11. What is half of 70?

    70 · Doubling & halving

  12. 12. What is half of 88?

    88 · Doubling & halving
12 questions · Seed 63 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 23?

    46

    Double 23 is 23 + 23 = 46.

  2. 2. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  3. 3. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  4. 4. What is double 38?

    76

    Double 38 is 38 + 38 = 76.

  5. 5. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  6. 6. What is double 37?

    74

    Double 37 is 37 + 37 = 74.

  7. 7. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

  8. 8. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

  9. 9. What is half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  10. 10. What is half of 40?

    20

    Half of 40 is 40 ÷ 2 = 20.

  11. 11. What is half of 70?

    35

    Half of 70 is 70 ÷ 2 = 35.

  12. 12. What is half of 88?

    44

    Half of 88 is 88 ÷ 2 = 44.

12 questions · Seed 63 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 23?

    23 · Doubling & halving

  2. 2. What is double 32?

    32 · Doubling & halving

  3. 3. What is double 13?

    13 · Doubling & halving

  4. 4. What is double 38?

    38 · Doubling & halving

  5. 5. What is double 21?

    21 · Doubling & halving

  6. 6. What is double 37?

    37 · Doubling & halving

  7. 7. What is half of 58?

    58 · Doubling & halving

  8. 8. What is double 26?

    26 · Doubling & halving

  9. 9. What is half of 86?

    86 · Doubling & halving

  10. 10. What is half of 40?

    40 · Doubling & halving

  11. 11. What is half of 70?

    70 · Doubling & halving

  12. 12. What is half of 88?

    88 · Doubling & halving
12 questions · Seed 63 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 23?

    46

    Double 23 is 23 + 23 = 46.

  2. 2. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  3. 3. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  4. 4. What is double 38?

    76

    Double 38 is 38 + 38 = 76.

  5. 5. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  6. 6. What is double 37?

    74

    Double 37 is 37 + 37 = 74.

  7. 7. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

  8. 8. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

  9. 9. What is half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  10. 10. What is half of 40?

    20

    Half of 40 is 40 ÷ 2 = 20.

  11. 11. What is half of 70?

    35

    Half of 70 is 70 ÷ 2 = 35.

  12. 12. What is half of 88?

    44

    Half of 88 is 88 ÷ 2 = 44.

12 questions · Seed 63 · Age guidance, not curriculum certification