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MathsAges 13-15

Decimal subtraction

Subtract numbers written in tenths and verify by adding the difference and subtrahend. Review suitability for your learners before teaching.

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Age band:Ages 10-12Ages 13-15

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Worksheet StudioPractice pack · Ages 13-15

Decimal subtraction

Take your time. Show your thinking.

  1. 1. 21.7 − 1.3 = ____

    21.7 · 1.3 · Decimal subtraction

  2. 2. 23.5 − 16.6 = ____

    23.5 · 16.6 · Decimal subtraction

  3. 3. 6.6 − 4.5 = ____

    6.6 · 4.5 · Decimal subtraction

  4. 4. 7.2 − 2.7 = ____

    7.2 · 2.7 · Decimal subtraction

  5. 5. 14.4 − 8.3 = ____

    14.4 · 8.3 · Decimal subtraction

  6. 6. 21.6 − 10.2 = ____

    21.6 · 10.2 · Decimal subtraction

  7. 7. 6.7 − 4.5 = ____

    6.7 · 4.5 · Decimal subtraction

  8. 8. 17.6 − 3.4 = ____

    17.6 · 3.4 · Decimal subtraction

  9. 9. 10.7 − 5.0 = ____

    10.7 · 5.0 · Decimal subtraction

  10. 10. 8.4 − 5.6 = ____

    8.4 · 5.6 · Decimal subtraction

  11. 11. 17.0 − 12.3 = ____

    17.0 · 12.3 · Decimal subtraction

  12. 12. 8.4 − 2.4 = ____

    8.4 · 2.4 · Decimal subtraction
12 questions · Seed 49 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 13-15

Decimal subtraction

Answers and reasoning. Review before teaching.

  1. 1. 21.7 − 1.3 = ____

    20.4

    Subtract 13 tenths from 217 tenths to get 204 tenths (20.4).

  2. 2. 23.5 − 16.6 = ____

    6.9

    Subtract 166 tenths from 235 tenths to get 69 tenths (6.9).

  3. 3. 6.6 − 4.5 = ____

    2.1

    Subtract 45 tenths from 66 tenths to get 21 tenths (2.1).

  4. 4. 7.2 − 2.7 = ____

    4.5

    Subtract 27 tenths from 72 tenths to get 45 tenths (4.5).

  5. 5. 14.4 − 8.3 = ____

    6.1

    Subtract 83 tenths from 144 tenths to get 61 tenths (6.1).

  6. 6. 21.6 − 10.2 = ____

    11.4

    Subtract 102 tenths from 216 tenths to get 114 tenths (11.4).

  7. 7. 6.7 − 4.5 = ____

    2.2

    Subtract 45 tenths from 67 tenths to get 22 tenths (2.2).

  8. 8. 17.6 − 3.4 = ____

    14.2

    Subtract 34 tenths from 176 tenths to get 142 tenths (14.2).

  9. 9. 10.7 − 5.0 = ____

    5.7

    Subtract 50 tenths from 107 tenths to get 57 tenths (5.7).

  10. 10. 8.4 − 5.6 = ____

    2.8

    Subtract 56 tenths from 84 tenths to get 28 tenths (2.8).

  11. 11. 17.0 − 12.3 = ____

    4.7

    Subtract 123 tenths from 170 tenths to get 47 tenths (4.7).

  12. 12. 8.4 − 2.4 = ____

    6.0

    Subtract 24 tenths from 84 tenths to get 60 tenths (6.0).

12 questions · Seed 49 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Decimal subtraction

Take your time. Show your thinking.

  1. 1. 21.7 − 1.3 = ____

    21.7 · 1.3 · Decimal subtraction

  2. 2. 23.5 − 16.6 = ____

    23.5 · 16.6 · Decimal subtraction

  3. 3. 6.6 − 4.5 = ____

    6.6 · 4.5 · Decimal subtraction

  4. 4. 7.2 − 2.7 = ____

    7.2 · 2.7 · Decimal subtraction

  5. 5. 14.4 − 8.3 = ____

    14.4 · 8.3 · Decimal subtraction

  6. 6. 21.6 − 10.2 = ____

    21.6 · 10.2 · Decimal subtraction

  7. 7. 6.7 − 4.5 = ____

    6.7 · 4.5 · Decimal subtraction

  8. 8. 17.6 − 3.4 = ____

    17.6 · 3.4 · Decimal subtraction

  9. 9. 10.7 − 5.0 = ____

    10.7 · 5.0 · Decimal subtraction

  10. 10. 8.4 − 5.6 = ____

    8.4 · 5.6 · Decimal subtraction

  11. 11. 17.0 − 12.3 = ____

    17.0 · 12.3 · Decimal subtraction

  12. 12. 8.4 − 2.4 = ____

    8.4 · 2.4 · Decimal subtraction
12 questions · Seed 49 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Decimal subtraction

Answers and reasoning. Review before teaching.

  1. 1. 21.7 − 1.3 = ____

    20.4

    Subtract 13 tenths from 217 tenths to get 204 tenths (20.4).

  2. 2. 23.5 − 16.6 = ____

    6.9

    Subtract 166 tenths from 235 tenths to get 69 tenths (6.9).

  3. 3. 6.6 − 4.5 = ____

    2.1

    Subtract 45 tenths from 66 tenths to get 21 tenths (2.1).

  4. 4. 7.2 − 2.7 = ____

    4.5

    Subtract 27 tenths from 72 tenths to get 45 tenths (4.5).

  5. 5. 14.4 − 8.3 = ____

    6.1

    Subtract 83 tenths from 144 tenths to get 61 tenths (6.1).

  6. 6. 21.6 − 10.2 = ____

    11.4

    Subtract 102 tenths from 216 tenths to get 114 tenths (11.4).

  7. 7. 6.7 − 4.5 = ____

    2.2

    Subtract 45 tenths from 67 tenths to get 22 tenths (2.2).

  8. 8. 17.6 − 3.4 = ____

    14.2

    Subtract 34 tenths from 176 tenths to get 142 tenths (14.2).

  9. 9. 10.7 − 5.0 = ____

    5.7

    Subtract 50 tenths from 107 tenths to get 57 tenths (5.7).

  10. 10. 8.4 − 5.6 = ____

    2.8

    Subtract 56 tenths from 84 tenths to get 28 tenths (2.8).

  11. 11. 17.0 − 12.3 = ____

    4.7

    Subtract 123 tenths from 170 tenths to get 47 tenths (4.7).

  12. 12. 8.4 − 2.4 = ____

    6.0

    Subtract 24 tenths from 84 tenths to get 60 tenths (6.0).

12 questions · Seed 49 · Age guidance, not curriculum certification