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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. 21.8 − 10.2 = ____

    21.8 · 10.2 · Decimal subtraction

  2. 2. 17.1 − 8.9 = ____

    17.1 · 8.9 · Decimal subtraction

  3. 3. 5.6 − 3.9 = ____

    5.6 · 3.9 · Decimal subtraction

  4. 4. 22.6 − 13.3 = ____

    22.6 · 13.3 · Decimal subtraction

  5. 5. 7.1 − 6.0 = ____

    7.1 · 6.0 · Decimal subtraction

  6. 6. 5.5 − 3.7 = ____

    5.5 · 3.7 · Decimal subtraction

  7. 7. 13.7 − 10.6 = ____

    13.7 · 10.6 · Decimal subtraction

  8. 8. 16.0 − 11.7 = ____

    16.0 · 11.7 · Decimal subtraction

  9. 9. 11.7 − 3.9 = ____

    11.7 · 3.9 · Decimal subtraction

  10. 10. 10.8 − 4.3 = ____

    10.8 · 4.3 · Decimal subtraction

  11. 11. 14.2 − 5.0 = ____

    14.2 · 5.0 · Decimal subtraction

  12. 12. 17.6 − 11.0 = ____

    17.6 · 11.0 · Decimal subtraction
12 questions · Seed 45 · 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. 21.8 − 10.2 = ____

    11.6

    Subtract 102 tenths from 218 tenths to get 116 tenths (11.6).

  2. 2. 17.1 − 8.9 = ____

    8.2

    Subtract 89 tenths from 171 tenths to get 82 tenths (8.2).

  3. 3. 5.6 − 3.9 = ____

    1.7

    Subtract 39 tenths from 56 tenths to get 17 tenths (1.7).

  4. 4. 22.6 − 13.3 = ____

    9.3

    Subtract 133 tenths from 226 tenths to get 93 tenths (9.3).

  5. 5. 7.1 − 6.0 = ____

    1.1

    Subtract 60 tenths from 71 tenths to get 11 tenths (1.1).

  6. 6. 5.5 − 3.7 = ____

    1.8

    Subtract 37 tenths from 55 tenths to get 18 tenths (1.8).

  7. 7. 13.7 − 10.6 = ____

    3.1

    Subtract 106 tenths from 137 tenths to get 31 tenths (3.1).

  8. 8. 16.0 − 11.7 = ____

    4.3

    Subtract 117 tenths from 160 tenths to get 43 tenths (4.3).

  9. 9. 11.7 − 3.9 = ____

    7.8

    Subtract 39 tenths from 117 tenths to get 78 tenths (7.8).

  10. 10. 10.8 − 4.3 = ____

    6.5

    Subtract 43 tenths from 108 tenths to get 65 tenths (6.5).

  11. 11. 14.2 − 5.0 = ____

    9.2

    Subtract 50 tenths from 142 tenths to get 92 tenths (9.2).

  12. 12. 17.6 − 11.0 = ____

    6.6

    Subtract 110 tenths from 176 tenths to get 66 tenths (6.6).

12 questions · Seed 45 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Decimal subtraction

Take your time. Show your thinking.

  1. 1. 21.8 − 10.2 = ____

    21.8 · 10.2 · Decimal subtraction

  2. 2. 17.1 − 8.9 = ____

    17.1 · 8.9 · Decimal subtraction

  3. 3. 5.6 − 3.9 = ____

    5.6 · 3.9 · Decimal subtraction

  4. 4. 22.6 − 13.3 = ____

    22.6 · 13.3 · Decimal subtraction

  5. 5. 7.1 − 6.0 = ____

    7.1 · 6.0 · Decimal subtraction

  6. 6. 5.5 − 3.7 = ____

    5.5 · 3.7 · Decimal subtraction

  7. 7. 13.7 − 10.6 = ____

    13.7 · 10.6 · Decimal subtraction

  8. 8. 16.0 − 11.7 = ____

    16.0 · 11.7 · Decimal subtraction

  9. 9. 11.7 − 3.9 = ____

    11.7 · 3.9 · Decimal subtraction

  10. 10. 10.8 − 4.3 = ____

    10.8 · 4.3 · Decimal subtraction

  11. 11. 14.2 − 5.0 = ____

    14.2 · 5.0 · Decimal subtraction

  12. 12. 17.6 − 11.0 = ____

    17.6 · 11.0 · Decimal subtraction
12 questions · Seed 45 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Decimal subtraction

Answers and reasoning. Review before teaching.

  1. 1. 21.8 − 10.2 = ____

    11.6

    Subtract 102 tenths from 218 tenths to get 116 tenths (11.6).

  2. 2. 17.1 − 8.9 = ____

    8.2

    Subtract 89 tenths from 171 tenths to get 82 tenths (8.2).

  3. 3. 5.6 − 3.9 = ____

    1.7

    Subtract 39 tenths from 56 tenths to get 17 tenths (1.7).

  4. 4. 22.6 − 13.3 = ____

    9.3

    Subtract 133 tenths from 226 tenths to get 93 tenths (9.3).

  5. 5. 7.1 − 6.0 = ____

    1.1

    Subtract 60 tenths from 71 tenths to get 11 tenths (1.1).

  6. 6. 5.5 − 3.7 = ____

    1.8

    Subtract 37 tenths from 55 tenths to get 18 tenths (1.8).

  7. 7. 13.7 − 10.6 = ____

    3.1

    Subtract 106 tenths from 137 tenths to get 31 tenths (3.1).

  8. 8. 16.0 − 11.7 = ____

    4.3

    Subtract 117 tenths from 160 tenths to get 43 tenths (4.3).

  9. 9. 11.7 − 3.9 = ____

    7.8

    Subtract 39 tenths from 117 tenths to get 78 tenths (7.8).

  10. 10. 10.8 − 4.3 = ____

    6.5

    Subtract 43 tenths from 108 tenths to get 65 tenths (6.5).

  11. 11. 14.2 − 5.0 = ____

    9.2

    Subtract 50 tenths from 142 tenths to get 92 tenths (9.2).

  12. 12. 17.6 − 11.0 = ____

    6.6

    Subtract 110 tenths from 176 tenths to get 66 tenths (6.6).

12 questions · Seed 45 · Age guidance, not curriculum certification