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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 18?

    18 · Doubling & halving

  2. 2. What is double 32?

    32 · Doubling & halving

  3. 3. What is half of 46?

    46 · Doubling & halving

  4. 4. What is half of 22?

    22 · Doubling & halving

  5. 5. What is double 30?

    30 · Doubling & halving

  6. 6. What is double 15?

    15 · Doubling & halving

  7. 7. What is half of 74?

    74 · Doubling & halving

  8. 8. What is double 6?

    6 · Doubling & halving

  9. 9. What is double 17?

    17 · Doubling & halving

  10. 10. What is half of 54?

    54 · Doubling & halving

  11. 11. What is half of 68?

    68 · Doubling & halving

  12. 12. What is double 26?

    26 · Doubling & halving
12 questions · Seed 55 · 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 18?

    9

    Half of 18 is 18 ÷ 2 = 9.

  2. 2. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  3. 3. What is half of 46?

    23

    Half of 46 is 46 ÷ 2 = 23.

  4. 4. What is half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  5. 5. What is double 30?

    60

    Double 30 is 30 + 30 = 60.

  6. 6. What is double 15?

    30

    Double 15 is 15 + 15 = 30.

  7. 7. What is half of 74?

    37

    Half of 74 is 74 ÷ 2 = 37.

  8. 8. What is double 6?

    12

    Double 6 is 6 + 6 = 12.

  9. 9. What is double 17?

    34

    Double 17 is 17 + 17 = 34.

  10. 10. What is half of 54?

    27

    Half of 54 is 54 ÷ 2 = 27.

  11. 11. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  12. 12. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

12 questions · Seed 55 · 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 18?

    18 · Doubling & halving

  2. 2. What is double 32?

    32 · Doubling & halving

  3. 3. What is half of 46?

    46 · Doubling & halving

  4. 4. What is half of 22?

    22 · Doubling & halving

  5. 5. What is double 30?

    30 · Doubling & halving

  6. 6. What is double 15?

    15 · Doubling & halving

  7. 7. What is half of 74?

    74 · Doubling & halving

  8. 8. What is double 6?

    6 · Doubling & halving

  9. 9. What is double 17?

    17 · Doubling & halving

  10. 10. What is half of 54?

    54 · Doubling & halving

  11. 11. What is half of 68?

    68 · Doubling & halving

  12. 12. What is double 26?

    26 · Doubling & halving
12 questions · Seed 55 · 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 18?

    9

    Half of 18 is 18 ÷ 2 = 9.

  2. 2. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  3. 3. What is half of 46?

    23

    Half of 46 is 46 ÷ 2 = 23.

  4. 4. What is half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  5. 5. What is double 30?

    60

    Double 30 is 30 + 30 = 60.

  6. 6. What is double 15?

    30

    Double 15 is 15 + 15 = 30.

  7. 7. What is half of 74?

    37

    Half of 74 is 74 ÷ 2 = 37.

  8. 8. What is double 6?

    12

    Double 6 is 6 + 6 = 12.

  9. 9. What is double 17?

    34

    Double 17 is 17 + 17 = 34.

  10. 10. What is half of 54?

    27

    Half of 54 is 54 ÷ 2 = 27.

  11. 11. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  12. 12. What is double 26?

    52

    Double 26 is 26 + 26 = 52.

12 questions · Seed 55 · Age guidance, not curriculum certification