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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 half of 86?

    86 · Doubling & halving

  2. 2. What is half of 36?

    36 · Doubling & halving

  3. 3. What is double 19?

    19 · Doubling & halving

  4. 4. What is half of 32?

    32 · Doubling & halving

  5. 5. What is half of 60?

    60 · Doubling & halving

  6. 6. What is half of 26?

    26 · Doubling & halving

  7. 7. What is double 35?

    35 · Doubling & halving

  8. 8. What is double 37?

    37 · Doubling & halving

  9. 9. What is double 43?

    43 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is double 34?

    34 · Doubling & halving

  12. 12. What is half of 78?

    78 · Doubling & halving
12 questions · Seed 57 · 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 half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  2. 2. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  3. 3. What is double 19?

    38

    Double 19 is 19 + 19 = 38.

  4. 4. What is half of 32?

    16

    Half of 32 is 32 ÷ 2 = 16.

  5. 5. What is half of 60?

    30

    Half of 60 is 60 ÷ 2 = 30.

  6. 6. What is half of 26?

    13

    Half of 26 is 26 ÷ 2 = 13.

  7. 7. What is double 35?

    70

    Double 35 is 35 + 35 = 70.

  8. 8. What is double 37?

    74

    Double 37 is 37 + 37 = 74.

  9. 9. What is double 43?

    86

    Double 43 is 43 + 43 = 86.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is double 34?

    68

    Double 34 is 34 + 34 = 68.

  12. 12. What is half of 78?

    39

    Half of 78 is 78 ÷ 2 = 39.

12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is half of 86?

    86 · Doubling & halving

  2. 2. What is half of 36?

    36 · Doubling & halving

  3. 3. What is double 19?

    19 · Doubling & halving

  4. 4. What is half of 32?

    32 · Doubling & halving

  5. 5. What is half of 60?

    60 · Doubling & halving

  6. 6. What is half of 26?

    26 · Doubling & halving

  7. 7. What is double 35?

    35 · Doubling & halving

  8. 8. What is double 37?

    37 · Doubling & halving

  9. 9. What is double 43?

    43 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is double 34?

    34 · Doubling & halving

  12. 12. What is half of 78?

    78 · Doubling & halving
12 questions · Seed 57 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  2. 2. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  3. 3. What is double 19?

    38

    Double 19 is 19 + 19 = 38.

  4. 4. What is half of 32?

    16

    Half of 32 is 32 ÷ 2 = 16.

  5. 5. What is half of 60?

    30

    Half of 60 is 60 ÷ 2 = 30.

  6. 6. What is half of 26?

    13

    Half of 26 is 26 ÷ 2 = 13.

  7. 7. What is double 35?

    70

    Double 35 is 35 + 35 = 70.

  8. 8. What is double 37?

    74

    Double 37 is 37 + 37 = 74.

  9. 9. What is double 43?

    86

    Double 43 is 43 + 43 = 86.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is double 34?

    68

    Double 34 is 34 + 34 = 68.

  12. 12. What is half of 78?

    39

    Half of 78 is 78 ÷ 2 = 39.

12 questions · Seed 57 · Age guidance, not curriculum certification