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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 26?

    26 · Doubling & halving

  2. 2. What is double 42?

    42 · Doubling & halving

  3. 3. What is half of 46?

    46 · Doubling & halving

  4. 4. What is double 38?

    38 · Doubling & halving

  5. 5. What is double 29?

    29 · Doubling & halving

  6. 6. What is half of 36?

    36 · Doubling & halving

  7. 7. What is double 18?

    18 · Doubling & halving

  8. 8. What is half of 78?

    78 · Doubling & halving

  9. 9. What is double 20?

    20 · Doubling & halving

  10. 10. What is double 44?

    44 · Doubling & halving

  11. 11. What is double 45?

    45 · Doubling & halving

  12. 12. What is half of 96?

    96 · Doubling & halving
12 questions · Seed 53 · 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 26?

    52

    Double 26 is 26 + 26 = 52.

  2. 2. What is double 42?

    84

    Double 42 is 42 + 42 = 84.

  3. 3. What is half of 46?

    23

    Half of 46 is 46 ÷ 2 = 23.

  4. 4. What is double 38?

    76

    Double 38 is 38 + 38 = 76.

  5. 5. What is double 29?

    58

    Double 29 is 29 + 29 = 58.

  6. 6. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  7. 7. What is double 18?

    36

    Double 18 is 18 + 18 = 36.

  8. 8. What is half of 78?

    39

    Half of 78 is 78 ÷ 2 = 39.

  9. 9. What is double 20?

    40

    Double 20 is 20 + 20 = 40.

  10. 10. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

  11. 11. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  12. 12. What is half of 96?

    48

    Half of 96 is 96 ÷ 2 = 48.

12 questions · Seed 53 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 26?

    26 · Doubling & halving

  2. 2. What is double 42?

    42 · Doubling & halving

  3. 3. What is half of 46?

    46 · Doubling & halving

  4. 4. What is double 38?

    38 · Doubling & halving

  5. 5. What is double 29?

    29 · Doubling & halving

  6. 6. What is half of 36?

    36 · Doubling & halving

  7. 7. What is double 18?

    18 · Doubling & halving

  8. 8. What is half of 78?

    78 · Doubling & halving

  9. 9. What is double 20?

    20 · Doubling & halving

  10. 10. What is double 44?

    44 · Doubling & halving

  11. 11. What is double 45?

    45 · Doubling & halving

  12. 12. What is half of 96?

    96 · Doubling & halving
12 questions · Seed 53 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

  2. 2. What is double 42?

    84

    Double 42 is 42 + 42 = 84.

  3. 3. What is half of 46?

    23

    Half of 46 is 46 ÷ 2 = 23.

  4. 4. What is double 38?

    76

    Double 38 is 38 + 38 = 76.

  5. 5. What is double 29?

    58

    Double 29 is 29 + 29 = 58.

  6. 6. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  7. 7. What is double 18?

    36

    Double 18 is 18 + 18 = 36.

  8. 8. What is half of 78?

    39

    Half of 78 is 78 ÷ 2 = 39.

  9. 9. What is double 20?

    40

    Double 20 is 20 + 20 = 40.

  10. 10. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

  11. 11. What is double 45?

    90

    Double 45 is 45 + 45 = 90.

  12. 12. What is half of 96?

    48

    Half of 96 is 96 ÷ 2 = 48.

12 questions · Seed 53 · Age guidance, not curriculum certification