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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 774 · 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. 1.4.1 × 0.22 =
  2. 2.8.3 × 0.31 =
  3. 3.5.3 × 1.5 =
  4. 4.0.66 × 1.8 =
  5. 5.5.9 × 0.18 =
  6. 6.0.65 × 0.7 =
  7. 7.2.1 × 0.39 =
  8. 8.4.8 × 0.8 =
  9. 9.0.92 × 3.8 =
  10. 10.0.54 × 2.4 =
  11. 11.7.3 × 1.1 =
  12. 12.0.53 × 0.4 =
  13. 13.0.21 × 3.1 =
  14. 14.7.5 × 0.21 =
  15. 15.0.13 × 3.9 =
  16. 16.9.1 × 2.7 =
  17. 17.0.65 × 2.6 =
  18. 18.1.1 × 1.9 =
  19. 19.0.08 × 1.1 =
  20. 20.0.95 × 3.7 =
  21. 21.6.4 × 0.19 =
  22. 22.0.55 × 1.7 =
  23. 23.7.4 × 0.2 =
  24. 24.0.6 × 1.2 =
  25. 25.9.3 × 2.2 =
  26. 26.1.5 × 2.6 =
  27. 27.4.8 × 0.27 =
  28. 28.3.3 × 0.7 =
  29. 29.2.8 × 0.15 =
  30. 30.0.09 × 1.1 =
  31. 31.0.29 × 3.4 =
  32. 32.0.71 × 1.6 =
  33. 33.0.03 × 0.4 =
  34. 34.6.1 × 1.2 =
  35. 35.0.84 × 3.8 =
  36. 36.0.59 × 1.8 =
  37. 37.2.9 × 0.04 =
  38. 38.9.8 × 1.3 =
  39. 39.2.1 × 3.9 =
  40. 40.0.09 × 2.7 =

Answer key

  1. 0.902
  2. 2.573
  3. 7.95
  4. 1.188
  5. 1.062
  6. 0.455
  7. 0.819
  8. 3.84
  9. 3.496
  10. 1.296
  11. 8.03
  12. 0.212
  13. 0.651
  14. 1.575
  15. 0.507
  16. 24.57
  17. 1.69
  18. 2.09
  19. 0.088
  20. 3.515
  21. 1.216
  22. 0.935
  23. 1.48
  24. 0.72
  25. 20.46
  26. 3.9
  27. 1.296
  28. 2.31
  29. 0.42
  30. 0.099
  31. 0.986
  32. 1.136
  33. 0.012
  34. 7.32
  35. 3.192
  36. 1.062
  37. 0.116
  38. 12.74
  39. 8.19
  40. 0.243

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