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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 38?

    38 · Doubling & halving

  2. 2. What is half of 56?

    56 · Doubling & halving

  3. 3. What is double 13?

    13 · Doubling & halving

  4. 4. What is double 35?

    35 · Doubling & halving

  5. 5. What is double 28?

    28 · Doubling & halving

  6. 6. What is half of 36?

    36 · Doubling & halving

  7. 7. What is half of 42?

    42 · Doubling & halving

  8. 8. What is half of 94?

    94 · Doubling & halving

  9. 9. What is double 32?

    32 · Doubling & halving

  10. 10. What is half of 50?

    50 · Doubling & halving

  11. 11. What is double 15?

    15 · Doubling & halving

  12. 12. What is double 44?

    44 · Doubling & halving
12 questions · Seed 104736 · 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 38?

    19

    Half of 38 is 38 ÷ 2 = 19.

  2. 2. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  3. 3. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  4. 4. What is double 35?

    70

    Double 35 is 35 + 35 = 70.

  5. 5. What is double 28?

    56

    Double 28 is 28 + 28 = 56.

  6. 6. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  7. 7. What is half of 42?

    21

    Half of 42 is 42 ÷ 2 = 21.

  8. 8. What is half of 94?

    47

    Half of 94 is 94 ÷ 2 = 47.

  9. 9. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  10. 10. What is half of 50?

    25

    Half of 50 is 50 ÷ 2 = 25.

  11. 11. What is double 15?

    30

    Double 15 is 15 + 15 = 30.

  12. 12. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

12 questions · Seed 104736 · 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 38?

    38 · Doubling & halving

  2. 2. What is half of 56?

    56 · Doubling & halving

  3. 3. What is double 13?

    13 · Doubling & halving

  4. 4. What is double 35?

    35 · Doubling & halving

  5. 5. What is double 28?

    28 · Doubling & halving

  6. 6. What is half of 36?

    36 · Doubling & halving

  7. 7. What is half of 42?

    42 · Doubling & halving

  8. 8. What is half of 94?

    94 · Doubling & halving

  9. 9. What is double 32?

    32 · Doubling & halving

  10. 10. What is half of 50?

    50 · Doubling & halving

  11. 11. What is double 15?

    15 · Doubling & halving

  12. 12. What is double 44?

    44 · Doubling & halving
12 questions · Seed 104736 · 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 38?

    19

    Half of 38 is 38 ÷ 2 = 19.

  2. 2. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  3. 3. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  4. 4. What is double 35?

    70

    Double 35 is 35 + 35 = 70.

  5. 5. What is double 28?

    56

    Double 28 is 28 + 28 = 56.

  6. 6. What is half of 36?

    18

    Half of 36 is 36 ÷ 2 = 18.

  7. 7. What is half of 42?

    21

    Half of 42 is 42 ÷ 2 = 21.

  8. 8. What is half of 94?

    47

    Half of 94 is 94 ÷ 2 = 47.

  9. 9. What is double 32?

    64

    Double 32 is 32 + 32 = 64.

  10. 10. What is half of 50?

    25

    Half of 50 is 50 ÷ 2 = 25.

  11. 11. What is double 15?

    30

    Double 15 is 15 + 15 = 30.

  12. 12. What is double 44?

    88

    Double 44 is 44 + 44 = 88.

12 questions · Seed 104736 · Age guidance, not curriculum certification