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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 473 · 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. 1.0.61 × 2.4 =
  2. 2.8.3 × 0.34 =
  3. 3.3.1 × 0.9 =
  4. 4.0.86 × 1.4 =
  5. 5.2.9 × 1.8 =
  6. 6.5.1 × 0.38 =
  7. 7.7.8 × 0.17 =
  8. 8.3.3 × 3.8 =
  9. 9.2.3 × 0.3 =
  10. 10.0.21 × 3.1 =
  11. 11.3.1 × 1.3 =
  12. 12.0.93 × 3.1 =
  13. 13.0.97 × 1.9 =
  14. 14.0.38 × 0.9 =
  15. 15.0.8 × 0.34 =
  16. 16.8.7 × 2.6 =
  17. 17.0.73 × 3.6 =
  18. 18.4.6 × 0.17 =
  19. 19.4.1 × 0.7 =
  20. 20.0.77 × 2.3 =
  21. 21.2.8 × 0.29 =
  22. 22.0.12 × 2.1 =
  23. 23.1.2 × 3.7 =
  24. 24.2.1 × 2.1 =
  25. 25.1.9 × 2.7 =
  26. 26.7.1 × 1.2 =
  27. 27.5.1 × 3.1 =
  28. 28.2.3 × 1.6 =
  29. 29.0.39 × 1.4 =
  30. 30.0.96 × 3.3 =
  31. 31.2.4 × 1.5 =
  32. 32.8.7 × 3.3 =
  33. 33.0.88 × 1.1 =
  34. 34.0.55 × 1.7 =
  35. 35.0.86 × 2.5 =
  36. 36.0.45 × 3.1 =
  37. 37.1.1 × 0.3 =
  38. 38.0.5 × 0.25 =
  39. 39.0.85 × 3.1 =
  40. 40.7.8 × 0.21 =

Answer key

  1. 1.464
  2. 2.822
  3. 2.79
  4. 1.204
  5. 5.22
  6. 1.938
  7. 1.326
  8. 12.54
  9. 0.69
  10. 0.651
  11. 4.03
  12. 2.883
  13. 1.843
  14. 0.342
  15. 0.272
  16. 22.62
  17. 2.628
  18. 0.782
  19. 2.87
  20. 1.771
  21. 0.812
  22. 0.252
  23. 4.44
  24. 4.41
  25. 5.13
  26. 8.52
  27. 15.81
  28. 3.68
  29. 0.546
  30. 3.168
  31. 3.6
  32. 28.71
  33. 0.968
  34. 0.935
  35. 2.15
  36. 1.395
  37. 0.33
  38. 0.125
  39. 2.635
  40. 1.638

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