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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 684 · 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. 1.1.5 × 1.4 =
  2. 2.0.31 × 2.2 =
  3. 3.0.61 × 1.3 =
  4. 4.0.84 × 2.2 =
  5. 5.0.94 × 2.1 =
  6. 6.0.13 × 3.5 =
  7. 7.0.2 × 2.8 =
  8. 8.7.7 × 0.21 =
  9. 9.5.8 × 0.07 =
  10. 10.4.7 × 3.8 =
  11. 11.0.15 × 3.2 =
  12. 12.9.8 × 0.39 =
  13. 13.0.96 × 3.1 =
  14. 14.0.59 × 2.8 =
  15. 15.0.91 × 3.2 =
  16. 16.5.2 × 0.21 =
  17. 17.3.5 × 0.8 =
  18. 18.7.4 × 3.1 =
  19. 19.0.12 × 2.4 =
  20. 20.7.6 × 0.32 =
  21. 21.1.6 × 3.2 =
  22. 22.5.1 × 3.4 =
  23. 23.0.21 × 1.3 =
  24. 24.0.96 × 2.3 =
  25. 25.0.29 × 1.9 =
  26. 26.6.3 × 0.38 =
  27. 27.0.89 × 3.8 =
  28. 28.0.89 × 2.1 =
  29. 29.3.2 × 1.1 =
  30. 30.5.2 × 0.21 =
  31. 31.0.17 × 1.8 =
  32. 32.0.52 × 3.6 =
  33. 33.0.19 × 0.6 =
  34. 34.7.4 × 0.19 =
  35. 35.0.33 × 2.9 =
  36. 36.7.2 × 0.11 =
  37. 37.8.3 × 2.4 =
  38. 38.6.3 × 2.6 =
  39. 39.4.7 × 0.36 =
  40. 40.1.3 × 2.4 =

Answer key

  1. 2.1
  2. 0.682
  3. 0.793
  4. 1.848
  5. 1.974
  6. 0.455
  7. 0.56
  8. 1.617
  9. 0.406
  10. 17.86
  11. 0.48
  12. 3.822
  13. 2.976
  14. 1.652
  15. 2.912
  16. 1.092
  17. 2.8
  18. 22.94
  19. 0.288
  20. 2.432
  21. 5.12
  22. 17.34
  23. 0.273
  24. 2.208
  25. 0.551
  26. 2.394
  27. 3.382
  28. 1.869
  29. 3.52
  30. 1.092
  31. 0.306
  32. 1.872
  33. 0.114
  34. 1.406
  35. 0.957
  36. 0.792
  37. 19.92
  38. 16.38
  39. 1.692
  40. 3.12

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