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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 22?

    22 · Doubling & halving

  2. 2. What is half of 74?

    74 · Doubling & halving

  3. 3. What is double 9?

    9 · Doubling & halving

  4. 4. What is half of 94?

    94 · Doubling & halving

  5. 5. What is double 21?

    21 · Doubling & halving

  6. 6. What is half of 56?

    56 · Doubling & halving

  7. 7. What is double 16?

    16 · Doubling & halving

  8. 8. What is double 23?

    23 · Doubling & halving

  9. 9. What is half of 90?

    90 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is half of 72?

    72 · Doubling & halving

  12. 12. What is half of 54?

    54 · Doubling & halving
12 questions · Seed 60 · 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 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  2. 2. What is half of 74?

    37

    Half of 74 is 74 ÷ 2 = 37.

  3. 3. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  4. 4. What is half of 94?

    47

    Half of 94 is 94 ÷ 2 = 47.

  5. 5. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  6. 6. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  7. 7. What is double 16?

    32

    Double 16 is 16 + 16 = 32.

  8. 8. What is double 23?

    46

    Double 23 is 23 + 23 = 46.

  9. 9. What is half of 90?

    45

    Half of 90 is 90 ÷ 2 = 45.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is half of 72?

    36

    Half of 72 is 72 ÷ 2 = 36.

  12. 12. What is half of 54?

    27

    Half of 54 is 54 ÷ 2 = 27.

12 questions · Seed 60 · 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 22?

    22 · Doubling & halving

  2. 2. What is half of 74?

    74 · Doubling & halving

  3. 3. What is double 9?

    9 · Doubling & halving

  4. 4. What is half of 94?

    94 · Doubling & halving

  5. 5. What is double 21?

    21 · Doubling & halving

  6. 6. What is half of 56?

    56 · Doubling & halving

  7. 7. What is double 16?

    16 · Doubling & halving

  8. 8. What is double 23?

    23 · Doubling & halving

  9. 9. What is half of 90?

    90 · Doubling & halving

  10. 10. What is half of 68?

    68 · Doubling & halving

  11. 11. What is half of 72?

    72 · Doubling & halving

  12. 12. What is half of 54?

    54 · Doubling & halving
12 questions · Seed 60 · 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 22?

    11

    Half of 22 is 22 ÷ 2 = 11.

  2. 2. What is half of 74?

    37

    Half of 74 is 74 ÷ 2 = 37.

  3. 3. What is double 9?

    18

    Double 9 is 9 + 9 = 18.

  4. 4. What is half of 94?

    47

    Half of 94 is 94 ÷ 2 = 47.

  5. 5. What is double 21?

    42

    Double 21 is 21 + 21 = 42.

  6. 6. What is half of 56?

    28

    Half of 56 is 56 ÷ 2 = 28.

  7. 7. What is double 16?

    32

    Double 16 is 16 + 16 = 32.

  8. 8. What is double 23?

    46

    Double 23 is 23 + 23 = 46.

  9. 9. What is half of 90?

    45

    Half of 90 is 90 ÷ 2 = 45.

  10. 10. What is half of 68?

    34

    Half of 68 is 68 ÷ 2 = 34.

  11. 11. What is half of 72?

    36

    Half of 72 is 72 ÷ 2 = 36.

  12. 12. What is half of 54?

    27

    Half of 54 is 54 ÷ 2 = 27.

12 questions · Seed 60 · Age guidance, not curriculum certification