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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 486 · 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. 1.6.1 × 0.6 =
  2. 2.0.06 × 1.1 =
  3. 3.6.8 × 0.35 =
  4. 4.0.77 × 2.7 =
  5. 5.4.8 × 0.13 =
  6. 6.5.4 × 0.14 =
  7. 7.4.1 × 0.38 =
  8. 8.4.4 × 1.3 =
  9. 9.0.51 × 2.6 =
  10. 10.0.47 × 1.5 =
  11. 11.0.6 × 2.5 =
  12. 12.3.3 × 0.11 =
  13. 13.0.38 × 1.1 =
  14. 14.0.05 × 2.7 =
  15. 15.8.2 × 0.39 =
  16. 16.0.31 × 0.8 =
  17. 17.8.5 × 3.5 =
  18. 18.8.9 × 3.1 =
  19. 19.0.83 × 3.9 =
  20. 20.5.1 × 3.7 =
  21. 21.0.49 × 2.8 =
  22. 22.0.9 × 0.3 =
  23. 23.8.2 × 0.08 =
  24. 24.6.1 × 0.02 =
  25. 25.0.53 × 3.8 =
  26. 26.0.15 × 2.8 =
  27. 27.2.7 × 2.1 =
  28. 28.1.9 × 2.9 =
  29. 29.0.62 × 3.5 =
  30. 30.6.2 × 2.7 =
  31. 31.0.33 × 3.2 =
  32. 32.6.1 × 3.7 =
  33. 33.0.46 × 2.6 =
  34. 34.0.11 × 2.9 =
  35. 35.4.8 × 0.11 =
  36. 36.0.08 × 3.4 =
  37. 37.0.07 × 0.3 =
  38. 38.1.2 × 3.3 =
  39. 39.0.26 × 1.4 =
  40. 40.0.05 × 3.9 =

Answer key

  1. 3.66
  2. 0.066
  3. 2.38
  4. 2.079
  5. 0.624
  6. 0.756
  7. 1.558
  8. 5.72
  9. 1.326
  10. 0.705
  11. 1.5
  12. 0.363
  13. 0.418
  14. 0.135
  15. 3.198
  16. 0.248
  17. 29.75
  18. 27.59
  19. 3.237
  20. 18.87
  21. 1.372
  22. 0.27
  23. 0.656
  24. 0.122
  25. 2.014
  26. 0.42
  27. 5.67
  28. 5.51
  29. 2.17
  30. 16.74
  31. 1.056
  32. 22.57
  33. 1.196
  34. 0.319
  35. 0.528
  36. 0.272
  37. 0.021
  38. 3.96
  39. 0.364
  40. 0.195

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