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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 240 · 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. 1.0.99 × 3.5 =
  2. 2.3.8 × 3.8 =
  3. 3.0.13 × 2.3 =
  4. 4.0.55 × 1.2 =
  5. 5.2.6 × 0.4 =
  6. 6.1.3 × 0.34 =
  7. 7.5.8 × 3.7 =
  8. 8.3.4 × 3.5 =
  9. 9.2.8 × 0.23 =
  10. 10.2.7 × 0.22 =
  11. 11.0.87 × 2.3 =
  12. 12.6.5 × 0.3 =
  13. 13.3.6 × 0.06 =
  14. 14.1.2 × 3.8 =
  15. 15.6.1 × 1.4 =
  16. 16.3.9 × 0.03 =
  17. 17.2.4 × 1.3 =
  18. 18.3.2 × 1.8 =
  19. 19.0.89 × 2.2 =
  20. 20.0.51 × 2.7 =
  21. 21.4.4 × 2.6 =
  22. 22.7.6 × 1.1 =
  23. 23.6.1 × 0.25 =
  24. 24.0.94 × 2.1 =
  25. 25.0.78 × 3.6 =
  26. 26.8.7 × 0.04 =
  27. 27.8.8 × 1.1 =
  28. 28.3.2 × 0.8 =
  29. 29.0.65 × 2.6 =
  30. 30.0.68 × 0.5 =
  31. 31.8.3 × 2.4 =
  32. 32.1.9 × 3.1 =
  33. 33.2.2 × 1.1 =
  34. 34.6.2 × 0.03 =
  35. 35.0.8 × 0.05 =
  36. 36.9.6 × 0.29 =
  37. 37.5.4 × 2.8 =
  38. 38.0.27 × 2.3 =
  39. 39.5.9 × 0.05 =
  40. 40.5.5 × 1.4 =

Answer key

  1. 3.465
  2. 14.44
  3. 0.299
  4. 0.66
  5. 1.04
  6. 0.442
  7. 21.46
  8. 11.9
  9. 0.644
  10. 0.594
  11. 2.001
  12. 1.95
  13. 0.216
  14. 4.56
  15. 8.54
  16. 0.117
  17. 3.12
  18. 5.76
  19. 1.958
  20. 1.377
  21. 11.44
  22. 8.36
  23. 1.525
  24. 1.974
  25. 2.808
  26. 0.348
  27. 9.68
  28. 2.56
  29. 1.69
  30. 0.34
  31. 19.92
  32. 5.89
  33. 2.42
  34. 0.186
  35. 0.04
  36. 2.784
  37. 15.12
  38. 0.621
  39. 0.295
  40. 7.7

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