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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 24?

    24 · Doubling & halving

  2. 2. What is half of 62?

    62 · Doubling & halving

  3. 3. What is double 40?

    40 · Doubling & halving

  4. 4. What is double 29?

    29 · Doubling & halving

  5. 5. What is double 45?

    45 · Doubling & halving

  6. 6. What is double 21?

    21 · Doubling & halving

  7. 7. What is double 48?

    48 · Doubling & halving

  8. 8. What is double 47?

    47 · Doubling & halving

  9. 9. What is double 34?

    34 · Doubling & halving

  10. 10. What is double 27?

    27 · Doubling & halving

  11. 11. What is double 14?

    14 · Doubling & halving

  12. 12. What is half of 76?

    76 · Doubling & halving
12 questions · Seed 104742 · 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 24?

    48

    Double 24 is 24 + 24 = 48.

  2. 2. What is half of 62?

    31

    Half of 62 is 62 ÷ 2 = 31.

  3. 3. What is double 40?

    80

    Double 40 is 40 + 40 = 80.

  4. 4. What is double 29?

    58

    Double 29 is 29 + 29 = 58.

  5. 5. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  6. 6. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  7. 7. What is double 48?

    96

    Double 48 is 48 + 48 = 96.

  8. 8. What is double 47?

    94

    Double 47 is 47 + 47 = 94.

  9. 9. What is double 34?

    68

    Double 34 is 34 + 34 = 68.

  10. 10. What is double 27?

    54

    Double 27 is 27 + 27 = 54.

  11. 11. What is double 14?

    28

    Double 14 is 14 + 14 = 28.

  12. 12. What is half of 76?

    38

    Half of 76 is 76 ÷ 2 = 38.

12 questions · Seed 104742 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 24?

    24 · Doubling & halving

  2. 2. What is half of 62?

    62 · Doubling & halving

  3. 3. What is double 40?

    40 · Doubling & halving

  4. 4. What is double 29?

    29 · Doubling & halving

  5. 5. What is double 45?

    45 · Doubling & halving

  6. 6. What is double 21?

    21 · Doubling & halving

  7. 7. What is double 48?

    48 · Doubling & halving

  8. 8. What is double 47?

    47 · Doubling & halving

  9. 9. What is double 34?

    34 · Doubling & halving

  10. 10. What is double 27?

    27 · Doubling & halving

  11. 11. What is double 14?

    14 · Doubling & halving

  12. 12. What is half of 76?

    76 · Doubling & halving
12 questions · Seed 104742 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 24?

    48

    Double 24 is 24 + 24 = 48.

  2. 2. What is half of 62?

    31

    Half of 62 is 62 ÷ 2 = 31.

  3. 3. What is double 40?

    80

    Double 40 is 40 + 40 = 80.

  4. 4. What is double 29?

    58

    Double 29 is 29 + 29 = 58.

  5. 5. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  6. 6. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  7. 7. What is double 48?

    96

    Double 48 is 48 + 48 = 96.

  8. 8. What is double 47?

    94

    Double 47 is 47 + 47 = 94.

  9. 9. What is double 34?

    68

    Double 34 is 34 + 34 = 68.

  10. 10. What is double 27?

    54

    Double 27 is 27 + 27 = 54.

  11. 11. What is double 14?

    28

    Double 14 is 14 + 14 = 28.

  12. 12. What is half of 76?

    38

    Half of 76 is 76 ÷ 2 = 38.

12 questions · Seed 104742 · Age guidance, not curriculum certification