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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. 22.5 − 17.0 = ____

    22.5 · 17.0 · Decimal subtraction

  2. 2. 21.9 − 20.9 = ____

    21.9 · 20.9 · Decimal subtraction

  3. 3. 21.7 − 5.2 = ____

    21.7 · 5.2 · Decimal subtraction

  4. 4. 9.0 − 6.2 = ____

    9.0 · 6.2 · Decimal subtraction

  5. 5. 19.2 − 7.2 = ____

    19.2 · 7.2 · Decimal subtraction

  6. 6. 10.5 − 1.9 = ____

    10.5 · 1.9 · Decimal subtraction

  7. 7. 22.9 − 19.3 = ____

    22.9 · 19.3 · Decimal subtraction

  8. 8. 23.4 − 11.4 = ____

    23.4 · 11.4 · Decimal subtraction

  9. 9. 20.9 − 4.4 = ____

    20.9 · 4.4 · Decimal subtraction

  10. 10. 20.7 − 11.9 = ____

    20.7 · 11.9 · Decimal subtraction

  11. 11. 16.0 − 5.3 = ____

    16.0 · 5.3 · Decimal subtraction

  12. 12. 21.6 − 8.0 = ____

    21.6 · 8.0 · Decimal subtraction
12 questions · Seed 58 · 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. 22.5 − 17.0 = ____

    5.5

    Subtract 170 tenths from 225 tenths to get 55 tenths (5.5).

  2. 2. 21.9 − 20.9 = ____

    1.0

    Subtract 209 tenths from 219 tenths to get 10 tenths (1.0).

  3. 3. 21.7 − 5.2 = ____

    16.5

    Subtract 52 tenths from 217 tenths to get 165 tenths (16.5).

  4. 4. 9.0 − 6.2 = ____

    2.8

    Subtract 62 tenths from 90 tenths to get 28 tenths (2.8).

  5. 5. 19.2 − 7.2 = ____

    12.0

    Subtract 72 tenths from 192 tenths to get 120 tenths (12.0).

  6. 6. 10.5 − 1.9 = ____

    8.6

    Subtract 19 tenths from 105 tenths to get 86 tenths (8.6).

  7. 7. 22.9 − 19.3 = ____

    3.6

    Subtract 193 tenths from 229 tenths to get 36 tenths (3.6).

  8. 8. 23.4 − 11.4 = ____

    12.0

    Subtract 114 tenths from 234 tenths to get 120 tenths (12.0).

  9. 9. 20.9 − 4.4 = ____

    16.5

    Subtract 44 tenths from 209 tenths to get 165 tenths (16.5).

  10. 10. 20.7 − 11.9 = ____

    8.8

    Subtract 119 tenths from 207 tenths to get 88 tenths (8.8).

  11. 11. 16.0 − 5.3 = ____

    10.7

    Subtract 53 tenths from 160 tenths to get 107 tenths (10.7).

  12. 12. 21.6 − 8.0 = ____

    13.6

    Subtract 80 tenths from 216 tenths to get 136 tenths (13.6).

12 questions · Seed 58 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 13-15

Decimal subtraction

Take your time. Show your thinking.

  1. 1. 22.5 − 17.0 = ____

    22.5 · 17.0 · Decimal subtraction

  2. 2. 21.9 − 20.9 = ____

    21.9 · 20.9 · Decimal subtraction

  3. 3. 21.7 − 5.2 = ____

    21.7 · 5.2 · Decimal subtraction

  4. 4. 9.0 − 6.2 = ____

    9.0 · 6.2 · Decimal subtraction

  5. 5. 19.2 − 7.2 = ____

    19.2 · 7.2 · Decimal subtraction

  6. 6. 10.5 − 1.9 = ____

    10.5 · 1.9 · Decimal subtraction

  7. 7. 22.9 − 19.3 = ____

    22.9 · 19.3 · Decimal subtraction

  8. 8. 23.4 − 11.4 = ____

    23.4 · 11.4 · Decimal subtraction

  9. 9. 20.9 − 4.4 = ____

    20.9 · 4.4 · Decimal subtraction

  10. 10. 20.7 − 11.9 = ____

    20.7 · 11.9 · Decimal subtraction

  11. 11. 16.0 − 5.3 = ____

    16.0 · 5.3 · Decimal subtraction

  12. 12. 21.6 − 8.0 = ____

    21.6 · 8.0 · Decimal subtraction
12 questions · Seed 58 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 13-15

Decimal subtraction

Answers and reasoning. Review before teaching.

  1. 1. 22.5 − 17.0 = ____

    5.5

    Subtract 170 tenths from 225 tenths to get 55 tenths (5.5).

  2. 2. 21.9 − 20.9 = ____

    1.0

    Subtract 209 tenths from 219 tenths to get 10 tenths (1.0).

  3. 3. 21.7 − 5.2 = ____

    16.5

    Subtract 52 tenths from 217 tenths to get 165 tenths (16.5).

  4. 4. 9.0 − 6.2 = ____

    2.8

    Subtract 62 tenths from 90 tenths to get 28 tenths (2.8).

  5. 5. 19.2 − 7.2 = ____

    12.0

    Subtract 72 tenths from 192 tenths to get 120 tenths (12.0).

  6. 6. 10.5 − 1.9 = ____

    8.6

    Subtract 19 tenths from 105 tenths to get 86 tenths (8.6).

  7. 7. 22.9 − 19.3 = ____

    3.6

    Subtract 193 tenths from 229 tenths to get 36 tenths (3.6).

  8. 8. 23.4 − 11.4 = ____

    12.0

    Subtract 114 tenths from 234 tenths to get 120 tenths (12.0).

  9. 9. 20.9 − 4.4 = ____

    16.5

    Subtract 44 tenths from 209 tenths to get 165 tenths (16.5).

  10. 10. 20.7 − 11.9 = ____

    8.8

    Subtract 119 tenths from 207 tenths to get 88 tenths (8.8).

  11. 11. 16.0 − 5.3 = ____

    10.7

    Subtract 53 tenths from 160 tenths to get 107 tenths (10.7).

  12. 12. 21.6 − 8.0 = ____

    13.6

    Subtract 80 tenths from 216 tenths to get 136 tenths (13.6).

12 questions · Seed 58 · Age guidance, not curriculum certification