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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 12?

    12 · Doubling & halving

  3. 3. What is half of 16?

    16 · Doubling & halving

  4. 4. What is double 10?

    10 · Doubling & halving

  5. 5. What is half of 30?

    30 · Doubling & halving

  6. 6. What is double 7?

    7 · Doubling & halving

  7. 7. What is double 13?

    13 · Doubling & halving

  8. 8. What is double 14?

    14 · Doubling & halving

  9. 9. What is double 5?

    5 · Doubling & halving

  10. 10. What is half of 24?

    24 · Doubling & halving

  11. 11. What is half of 10?

    10 · Doubling & halving

  12. 12. What is half of 4?

    4 · Doubling & halving
12 questions · Seed 62 · 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 12?

    6

    Half of 12 is 12 ÷ 2 = 6.

  3. 3. What is half of 16?

    8

    Half of 16 is 16 ÷ 2 = 8.

  4. 4. What is double 10?

    20

    Double 10 is 10 + 10 = 20.

  5. 5. What is half of 30?

    15

    Half of 30 is 30 ÷ 2 = 15.

  6. 6. What is double 7?

    14

    Double 7 is 7 + 7 = 14.

  7. 7. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  8. 8. What is double 14?

    28

    Double 14 is 14 + 14 = 28.

  9. 9. What is double 5?

    10

    Double 5 is 5 + 5 = 10.

  10. 10. What is half of 24?

    12

    Half of 24 is 24 ÷ 2 = 12.

  11. 11. What is half of 10?

    5

    Half of 10 is 10 ÷ 2 = 5.

  12. 12. What is half of 4?

    2

    Half of 4 is 4 ÷ 2 = 2.

12 questions · Seed 62 · 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 12?

    12 · Doubling & halving

  3. 3. What is half of 16?

    16 · Doubling & halving

  4. 4. What is double 10?

    10 · Doubling & halving

  5. 5. What is half of 30?

    30 · Doubling & halving

  6. 6. What is double 7?

    7 · Doubling & halving

  7. 7. What is double 13?

    13 · Doubling & halving

  8. 8. What is double 14?

    14 · Doubling & halving

  9. 9. What is double 5?

    5 · Doubling & halving

  10. 10. What is half of 24?

    24 · Doubling & halving

  11. 11. What is half of 10?

    10 · Doubling & halving

  12. 12. What is half of 4?

    4 · Doubling & halving
12 questions · Seed 62 · 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 12?

    6

    Half of 12 is 12 ÷ 2 = 6.

  3. 3. What is half of 16?

    8

    Half of 16 is 16 ÷ 2 = 8.

  4. 4. What is double 10?

    20

    Double 10 is 10 + 10 = 20.

  5. 5. What is half of 30?

    15

    Half of 30 is 30 ÷ 2 = 15.

  6. 6. What is double 7?

    14

    Double 7 is 7 + 7 = 14.

  7. 7. What is double 13?

    26

    Double 13 is 13 + 13 = 26.

  8. 8. What is double 14?

    28

    Double 14 is 14 + 14 = 28.

  9. 9. What is double 5?

    10

    Double 5 is 5 + 5 = 10.

  10. 10. What is half of 24?

    12

    Half of 24 is 24 ÷ 2 = 12.

  11. 11. What is half of 10?

    5

    Half of 10 is 10 ÷ 2 = 5.

  12. 12. What is half of 4?

    2

    Half of 4 is 4 ÷ 2 = 2.

12 questions · Seed 62 · Age guidance, not curriculum certification