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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 127 · 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. 1.6.3 × 1.2 =
  2. 2.7.3 × 0.02 =
  3. 3.0.75 × 2.4 =
  4. 4.0.82 × 3.9 =
  5. 5.6.6 × 0.06 =
  6. 6.8.6 × 0.02 =
  7. 7.4.3 × 0.9 =
  8. 8.8.8 × 1.6 =
  9. 9.0.42 × 0.3 =
  10. 10.1.1 × 0.21 =
  11. 11.4.1 × 0.31 =
  12. 12.0.06 × 0.8 =
  13. 13.2.4 × 0.9 =
  14. 14.6.3 × 3.7 =
  15. 15.0.71 × 2.6 =
  16. 16.3.2 × 0.38 =
  17. 17.0.71 × 2.7 =
  18. 18.8.9 × 2.6 =
  19. 19.2.8 × 0.4 =
  20. 20.0.34 × 2.3 =
  21. 21.0.8 × 0.13 =
  22. 22.1.1 × 0.8 =
  23. 23.0.39 × 2.6 =
  24. 24.0.42 × 2.4 =
  25. 25.0.25 × 0.9 =
  26. 26.7.3 × 0.02 =
  27. 27.0.68 × 0.2 =
  28. 28.0.84 × 2.7 =
  29. 29.0.51 × 2.6 =
  30. 30.0.77 × 1.7 =
  31. 31.4.9 × 1.2 =
  32. 32.3.6 × 0.7 =
  33. 33.0.92 × 3.4 =
  34. 34.9.3 × 3.3 =
  35. 35.0.31 × 0.4 =
  36. 36.2.4 × 2.4 =
  37. 37.6.1 × 1.9 =
  38. 38.0.38 × 2.9 =
  39. 39.2.1 × 0.04 =
  40. 40.0.14 × 3.1 =

Answer key

  1. 7.56
  2. 0.146
  3. 1.8
  4. 3.198
  5. 0.396
  6. 0.172
  7. 3.87
  8. 14.08
  9. 0.126
  10. 0.231
  11. 1.271
  12. 0.048
  13. 2.16
  14. 23.31
  15. 1.846
  16. 1.216
  17. 1.917
  18. 23.14
  19. 1.12
  20. 0.782
  21. 0.104
  22. 0.88
  23. 1.014
  24. 1.008
  25. 0.225
  26. 0.146
  27. 0.136
  28. 2.268
  29. 1.326
  30. 1.309
  31. 5.88
  32. 2.52
  33. 3.128
  34. 30.69
  35. 0.124
  36. 5.76
  37. 11.59
  38. 1.102
  39. 0.084
  40. 0.434

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