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MathsAges 4-6

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 4-6

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is half of 18?

    18 · Doubling & halving

  2. 2. What is half of 22?

    22 · Doubling & halving

  3. 3. What is half of 24?

    24 · Doubling & halving

  4. 4. What is double 9?

    9 · Doubling & halving

  5. 5. What is half of 20?

    20 · Doubling & halving

  6. 6. What is half of 30?

    30 · Doubling & halving

  7. 7. What is double 10?

    10 · Doubling & halving

  8. 8. What is double 3?

    3 · Doubling & halving

  9. 9. What is double 2?

    2 · Doubling & halving

  10. 10. What is half of 6?

    6 · Doubling & halving

  11. 11. What is double 4?

    4 · Doubling & halving

  12. 12. What is double 7?

    7 · Doubling & halving
12 questions · Seed 104729 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6

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 half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  3. 3. What is half of 24?

    12

    Half of 24 is 24 ÷ 2 = 12.

  4. 4. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  5. 5. What is half of 20?

    10

    Half of 20 is 20 ÷ 2 = 10.

  6. 6. What is half of 30?

    15

    Half of 30 is 30 ÷ 2 = 15.

  7. 7. What is double 10?

    20

    Double 10 is 10 + 10 = 20.

  8. 8. What is double 3?

    6

    Double 3 is 3 + 3 = 6.

  9. 9. What is double 2?

    4

    Double 2 is 2 + 2 = 4.

  10. 10. What is half of 6?

    3

    Half of 6 is 6 ÷ 2 = 3.

  11. 11. What is double 4?

    8

    Double 4 is 4 + 4 = 8.

  12. 12. What is double 7?

    14

    Double 7 is 7 + 7 = 14.

12 questions · Seed 104729 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6

Doubling & halving

Take your time. Show your thinking.

  1. 1. What is half of 18?

    18 · Doubling & halving

  2. 2. What is half of 22?

    22 · Doubling & halving

  3. 3. What is half of 24?

    24 · Doubling & halving

  4. 4. What is double 9?

    9 · Doubling & halving

  5. 5. What is half of 20?

    20 · Doubling & halving

  6. 6. What is half of 30?

    30 · Doubling & halving

  7. 7. What is double 10?

    10 · Doubling & halving

  8. 8. What is double 3?

    3 · Doubling & halving

  9. 9. What is double 2?

    2 · Doubling & halving

  10. 10. What is half of 6?

    6 · Doubling & halving

  11. 11. What is double 4?

    4 · Doubling & halving

  12. 12. What is double 7?

    7 · Doubling & halving
12 questions · Seed 104729 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6

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 half of 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  3. 3. What is half of 24?

    12

    Half of 24 is 24 ÷ 2 = 12.

  4. 4. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  5. 5. What is half of 20?

    10

    Half of 20 is 20 ÷ 2 = 10.

  6. 6. What is half of 30?

    15

    Half of 30 is 30 ÷ 2 = 15.

  7. 7. What is double 10?

    20

    Double 10 is 10 + 10 = 20.

  8. 8. What is double 3?

    6

    Double 3 is 3 + 3 = 6.

  9. 9. What is double 2?

    4

    Double 2 is 2 + 2 = 4.

  10. 10. What is half of 6?

    3

    Half of 6 is 6 ÷ 2 = 3.

  11. 11. What is double 4?

    8

    Double 4 is 4 + 4 = 8.

  12. 12. What is double 7?

    14

    Double 7 is 7 + 7 = 14.

12 questions · Seed 104729 · Age guidance, not curriculum certification