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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 15?

    15 · Doubling & halving

  2. 2. What is double 44?

    44 · Doubling & halving

  3. 3. What is double 19?

    19 · Doubling & halving

  4. 4. What is half of 72?

    72 · Doubling & halving

  5. 5. What is half of 64?

    64 · Doubling & halving

  6. 6. What is half of 32?

    32 · Doubling & halving

  7. 7. What is half of 22?

    22 · Doubling & halving

  8. 8. What is double 45?

    45 · Doubling & halving

  9. 9. What is double 22?

    22 · Doubling & halving

  10. 10. What is half of 86?

    86 · Doubling & halving

  11. 11. What is half of 56?

    56 · Doubling & halving

  12. 12. What is half of 58?

    58 · Doubling & halving
12 questions · Seed 46 · 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 15?

    30

    Double 15 is 15 + 15 = 30.

  2. 2. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

  3. 3. What is double 19?

    38

    Double 19 is 19 + 19 = 38.

  4. 4. What is half of 72?

    36

    Half of 72 is 72 ÷ 2 = 36.

  5. 5. What is half of 64?

    32

    Half of 64 is 64 ÷ 2 = 32.

  6. 6. What is half of 32?

    16

    Half of 32 is 32 ÷ 2 = 16.

  7. 7. What is half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  8. 8. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  9. 9. What is double 22?

    44

    Double 22 is 22 + 22 = 44.

  10. 10. What is half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  11. 11. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  12. 12. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

12 questions · Seed 46 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 15?

    15 · Doubling & halving

  2. 2. What is double 44?

    44 · Doubling & halving

  3. 3. What is double 19?

    19 · Doubling & halving

  4. 4. What is half of 72?

    72 · Doubling & halving

  5. 5. What is half of 64?

    64 · Doubling & halving

  6. 6. What is half of 32?

    32 · Doubling & halving

  7. 7. What is half of 22?

    22 · Doubling & halving

  8. 8. What is double 45?

    45 · Doubling & halving

  9. 9. What is double 22?

    22 · Doubling & halving

  10. 10. What is half of 86?

    86 · Doubling & halving

  11. 11. What is half of 56?

    56 · Doubling & halving

  12. 12. What is half of 58?

    58 · Doubling & halving
12 questions · Seed 46 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 15?

    30

    Double 15 is 15 + 15 = 30.

  2. 2. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

  3. 3. What is double 19?

    38

    Double 19 is 19 + 19 = 38.

  4. 4. What is half of 72?

    36

    Half of 72 is 72 ÷ 2 = 36.

  5. 5. What is half of 64?

    32

    Half of 64 is 64 ÷ 2 = 32.

  6. 6. What is half of 32?

    16

    Half of 32 is 32 ÷ 2 = 16.

  7. 7. What is half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  8. 8. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  9. 9. What is double 22?

    44

    Double 22 is 22 + 22 = 44.

  10. 10. What is half of 86?

    43

    Half of 86 is 86 ÷ 2 = 43.

  11. 11. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  12. 12. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

12 questions · Seed 46 · Age guidance, not curriculum certification