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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 489 · 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. 1.3.1 × 0.7 =
  2. 2.1.1 × 0.08 =
  3. 3.4.3 × 0.27 =
  4. 4.0.71 × 0.9 =
  5. 5.1.6 × 1.1 =
  6. 6.1.4 × 0.04 =
  7. 7.6.2 × 0.24 =
  8. 8.2.8 × 0.14 =
  9. 9.0.26 × 3.5 =
  10. 10.0.46 × 1.2 =
  11. 11.3.1 × 0.33 =
  12. 12.3.7 × 0.33 =
  13. 13.1.1 × 0.28 =
  14. 14.6.5 × 0.3 =
  15. 15.0.87 × 2.8 =
  16. 16.0.64 × 1.6 =
  17. 17.4.7 × 0.5 =
  18. 18.8.9 × 0.07 =
  19. 19.7.9 × 0.36 =
  20. 20.8.1 × 0.29 =
  21. 21.0.84 × 3.7 =
  22. 22.0.02 × 2.6 =
  23. 23.8.4 × 0.21 =
  24. 24.4.3 × 1.6 =
  25. 25.0.07 × 3.2 =
  26. 26.0.14 × 0.3 =
  27. 27.1.3 × 2.3 =
  28. 28.9.6 × 0.11 =
  29. 29.0.09 × 3.9 =
  30. 30.0.39 × 2.7 =
  31. 31.9.9 × 0.08 =
  32. 32.1.1 × 0.07 =
  33. 33.0.09 × 1.1 =
  34. 34.8.7 × 0.03 =
  35. 35.0.76 × 2.6 =
  36. 36.0.44 × 0.2 =
  37. 37.0.27 × 0.6 =
  38. 38.3.1 × 0.6 =
  39. 39.0.36 × 3.6 =
  40. 40.0.02 × 0.3 =

Answer key

  1. 2.17
  2. 0.088
  3. 1.161
  4. 0.639
  5. 1.76
  6. 0.056
  7. 1.488
  8. 0.392
  9. 0.91
  10. 0.552
  11. 1.023
  12. 1.221
  13. 0.308
  14. 1.95
  15. 2.436
  16. 1.024
  17. 2.35
  18. 0.623
  19. 2.844
  20. 2.349
  21. 3.108
  22. 0.052
  23. 1.764
  24. 6.88
  25. 0.224
  26. 0.042
  27. 2.99
  28. 1.056
  29. 0.351
  30. 1.053
  31. 0.792
  32. 0.077
  33. 0.099
  34. 0.261
  35. 1.976
  36. 0.088
  37. 0.162
  38. 1.86
  39. 1.296
  40. 0.006

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