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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 48?

    48 · Doubling & halving

  2. 2. What is half of 42?

    42 · Doubling & halving

  3. 3. What is double 26?

    26 · Doubling & halving

  4. 4. What is half of 84?

    84 · Doubling & halving

  5. 5. What is half of 58?

    58 · Doubling & halving

  6. 6. What is double 9?

    9 · Doubling & halving

  7. 7. What is half of 70?

    70 · Doubling & halving

  8. 8. What is half of 64?

    64 · Doubling & halving

  9. 9. What is double 32?

    32 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is half of 20?

    20 · Doubling & halving

  12. 12. What is half of 38?

    38 · Doubling & halving
12 questions · Seed 50 · 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 48?

    96

    Double 48 is 48 + 48 = 96.

  2. 2. What is half of 42?

    21

    Half of 42 is 42 ÷ 2 = 21.

  3. 3. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

  4. 4. What is half of 84?

    42

    Half of 84 is 84 ÷ 2 = 42.

  5. 5. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

  6. 6. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  7. 7. What is half of 70?

    35

    Half of 70 is 70 ÷ 2 = 35.

  8. 8. What is half of 64?

    32

    Half of 64 is 64 ÷ 2 = 32.

  9. 9. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is half of 20?

    10

    Half of 20 is 20 ÷ 2 = 10.

  12. 12. What is half of 38?

    19

    Half of 38 is 38 ÷ 2 = 19.

12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is double 48?

    48 · Doubling & halving

  2. 2. What is half of 42?

    42 · Doubling & halving

  3. 3. What is double 26?

    26 · Doubling & halving

  4. 4. What is half of 84?

    84 · Doubling & halving

  5. 5. What is half of 58?

    58 · Doubling & halving

  6. 6. What is double 9?

    9 · Doubling & halving

  7. 7. What is half of 70?

    70 · Doubling & halving

  8. 8. What is half of 64?

    64 · Doubling & halving

  9. 9. What is double 32?

    32 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is half of 20?

    20 · Doubling & halving

  12. 12. What is half of 38?

    38 · Doubling & halving
12 questions · Seed 50 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Doubling & halving

Answers and reasoning. Review before teaching.

  1. 1. What is double 48?

    96

    Double 48 is 48 + 48 = 96.

  2. 2. What is half of 42?

    21

    Half of 42 is 42 ÷ 2 = 21.

  3. 3. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

  4. 4. What is half of 84?

    42

    Half of 84 is 84 ÷ 2 = 42.

  5. 5. What is half of 58?

    29

    Half of 58 is 58 ÷ 2 = 29.

  6. 6. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  7. 7. What is half of 70?

    35

    Half of 70 is 70 ÷ 2 = 35.

  8. 8. What is half of 64?

    32

    Half of 64 is 64 ÷ 2 = 32.

  9. 9. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is half of 20?

    10

    Half of 20 is 20 ÷ 2 = 10.

  12. 12. What is half of 38?

    19

    Half of 38 is 38 ÷ 2 = 19.

12 questions · Seed 50 · Age guidance, not curriculum certification