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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 112 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.1.1 × 0.33 =
  2. 2.8.1 × 3.5 =
  3. 3.0.44 × 1.2 =
  4. 4.3.6 × 0.31 =
  5. 5.0.03 × 2.7 =
  6. 6.0.04 × 0.4 =
  7. 7.0.98 × 0.5 =
  8. 8.4.2 × 3.4 =
  9. 9.8.4 × 3.9 =
  10. 10.3.1 × 0.5 =
  11. 11.1.1 × 3.9 =
  12. 12.4.1 × 1.6 =
  13. 13.0.23 × 1.9 =
  14. 14.0.28 × 2.8 =
  15. 15.0.11 × 2.8 =
  16. 16.5.1 × 2.4 =
  17. 17.0.35 × 0.8 =
  18. 18.0.83 × 1.5 =
  19. 19.8.1 × 0.11 =
  20. 20.1.1 × 1.2 =
  21. 21.3.5 × 0.23 =
  22. 22.0.61 × 0.9 =
  23. 23.0.65 × 0.7 =
  24. 24.0.08 × 3.7 =
  25. 25.0.29 × 3.3 =
  26. 26.0.36 × 1.2 =
  27. 27.9.7 × 1.1 =
  28. 28.5.1 × 0.25 =
  29. 29.0.41 × 2.1 =
  30. 30.1.1 × 0.08 =
  31. 31.0.95 × 2.7 =
  32. 32.1.5 × 3.2 =
  33. 33.8.3 × 0.11 =
  34. 34.3.1 × 0.25 =
  35. 35.3.3 × 3.6 =
  36. 36.0.7 × 2.3 =
  37. 37.7.2 × 2.4 =
  38. 38.0.74 × 1.7 =
  39. 39.2.1 × 0.11 =
  40. 40.0.91 × 0.7 =

Answer key

  1. 0.363
  2. 28.35
  3. 0.528
  4. 1.116
  5. 0.081
  6. 0.016
  7. 0.49
  8. 14.28
  9. 32.76
  10. 1.55
  11. 4.29
  12. 6.56
  13. 0.437
  14. 0.784
  15. 0.308
  16. 12.24
  17. 0.28
  18. 1.245
  19. 0.891
  20. 1.32
  21. 0.805
  22. 0.549
  23. 0.455
  24. 0.296
  25. 0.957
  26. 0.432
  27. 10.67
  28. 1.275
  29. 0.861
  30. 0.088
  31. 2.565
  32. 4.8
  33. 0.913
  34. 0.775
  35. 11.88
  36. 1.61
  37. 17.28
  38. 1.258
  39. 0.231
  40. 0.637

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