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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 306 · 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. 1.0.67 × 2.4 =
  2. 2.0.32 × 3.6 =
  3. 3.0.21 × 3.1 =
  4. 4.0.2 × 0.08 =
  5. 5.8.6 × 2.2 =
  6. 6.0.51 × 2.5 =
  7. 7.0.71 × 2.3 =
  8. 8.2.1 × 3.4 =
  9. 9.0.55 × 2.2 =
  10. 10.9.1 × 0.04 =
  11. 11.0.15 × 0.5 =
  12. 12.6.3 × 0.3 =
  13. 13.8.1 × 0.17 =
  14. 14.0.79 × 0.9 =
  15. 15.3.1 × 0.14 =
  16. 16.2.5 × 0.18 =
  17. 17.0.65 × 2.2 =
  18. 18.1.1 × 0.38 =
  19. 19.0.6 × 0.05 =
  20. 20.2.1 × 3.7 =
  21. 21.0.43 × 3.2 =
  22. 22.5.3 × 2.2 =
  23. 23.4.1 × 1.1 =
  24. 24.0.05 × 2.1 =
  25. 25.0.21 × 2.5 =
  26. 26.1.6 × 1.8 =
  27. 27.6.4 × 0.4 =
  28. 28.6.2 × 0.25 =
  29. 29.0.51 × 3.1 =
  30. 30.2.1 × 0.36 =
  31. 31.4.6 × 0.37 =
  32. 32.0.67 × 1.1 =
  33. 33.0.57 × 2.1 =
  34. 34.0.5 × 0.18 =
  35. 35.7.6 × 0.04 =
  36. 36.0.83 × 2.1 =
  37. 37.0.86 × 2.3 =
  38. 38.0.17 × 1.1 =
  39. 39.5.5 × 1.2 =
  40. 40.2.2 × 0.11 =

Answer key

  1. 1.608
  2. 1.152
  3. 0.651
  4. 0.016
  5. 18.92
  6. 1.275
  7. 1.633
  8. 7.14
  9. 1.21
  10. 0.364
  11. 0.075
  12. 1.89
  13. 1.377
  14. 0.711
  15. 0.434
  16. 0.45
  17. 1.43
  18. 0.418
  19. 0.03
  20. 7.77
  21. 1.376
  22. 11.66
  23. 4.51
  24. 0.105
  25. 0.525
  26. 2.88
  27. 2.56
  28. 1.55
  29. 1.581
  30. 0.756
  31. 1.702
  32. 0.737
  33. 1.197
  34. 0.09
  35. 0.304
  36. 1.743
  37. 1.978
  38. 0.187
  39. 6.6
  40. 0.242

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