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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 386 · 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. 1.2.1 × 0.9 =
  2. 2.0.99 × 1.4 =
  3. 3.3.1 × 1.4 =
  4. 4.0.29 × 3.1 =
  5. 5.0.2 × 2.8 =
  6. 6.0.45 × 3.5 =
  7. 7.0.97 × 1.9 =
  8. 8.8.1 × 0.38 =
  9. 9.9.8 × 1.8 =
  10. 10.0.79 × 0.6 =
  11. 11.2.4 × 0.15 =
  12. 12.0.29 × 3.8 =
  13. 13.0.41 × 2.3 =
  14. 14.7.7 × 0.17 =
  15. 15.8.1 × 0.19 =
  16. 16.0.9 × 0.5 =
  17. 17.7.3 × 1.3 =
  18. 18.0.81 × 0.6 =
  19. 19.0.18 × 3.3 =
  20. 20.8.7 × 2.9 =
  21. 21.0.91 × 2.9 =
  22. 22.3.3 × 0.07 =
  23. 23.6.5 × 0.38 =
  24. 24.5.5 × 0.22 =
  25. 25.0.03 × 2.3 =
  26. 26.0.44 × 1.4 =
  27. 27.6.5 × 0.9 =
  28. 28.0.32 × 2.8 =
  29. 29.0.66 × 2.4 =
  30. 30.7.6 × 0.14 =
  31. 31.9.3 × 2.5 =
  32. 32.2.1 × 1.1 =
  33. 33.5.9 × 0.32 =
  34. 34.2.7 × 3.7 =
  35. 35.2.4 × 0.05 =
  36. 36.0.79 × 1.7 =
  37. 37.0.08 × 2.4 =
  38. 38.7.9 × 3.1 =
  39. 39.0.45 × 2.1 =
  40. 40.0.91 × 0.5 =

Answer key

  1. 1.89
  2. 1.386
  3. 4.34
  4. 0.899
  5. 0.56
  6. 1.575
  7. 1.843
  8. 3.078
  9. 17.64
  10. 0.474
  11. 0.36
  12. 1.102
  13. 0.943
  14. 1.309
  15. 1.539
  16. 0.45
  17. 9.49
  18. 0.486
  19. 0.594
  20. 25.23
  21. 2.639
  22. 0.231
  23. 2.47
  24. 1.21
  25. 0.069
  26. 0.616
  27. 5.85
  28. 0.896
  29. 1.584
  30. 1.064
  31. 23.25
  32. 2.31
  33. 1.888
  34. 9.99
  35. 0.12
  36. 1.343
  37. 0.192
  38. 24.49
  39. 0.945
  40. 0.455

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