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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 460 · 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. 1.6.6 × 0.06 =
  2. 2.0.64 × 1.2 =
  3. 3.0.61 × 0.2 =
  4. 4.0.48 × 2.3 =
  5. 5.5.7 × 3.9 =
  6. 6.0.25 × 3.4 =
  7. 7.2.5 × 3.8 =
  8. 8.0.28 × 2.6 =
  9. 9.0.95 × 0.6 =
  10. 10.0.85 × 2.8 =
  11. 11.0.93 × 1.2 =
  12. 12.8.1 × 1.8 =
  13. 13.0.85 × 2.9 =
  14. 14.0.61 × 2.7 =
  15. 15.5.2 × 2.3 =
  16. 16.0.3 × 0.19 =
  17. 17.0.04 × 0.7 =
  18. 18.7.3 × 2.5 =
  19. 19.0.89 × 2.7 =
  20. 20.2.8 × 0.17 =
  21. 21.0.81 × 1.3 =
  22. 22.0.12 × 0.7 =
  23. 23.9.2 × 0.4 =
  24. 24.4.7 × 3.6 =
  25. 25.0.27 × 2.1 =
  26. 26.9.2 × 0.21 =
  27. 27.0.18 × 1.9 =
  28. 28.0.71 × 0.5 =
  29. 29.0.61 × 1.8 =
  30. 30.0.08 × 0.8 =
  31. 31.5.2 × 3.1 =
  32. 32.0.41 × 2.5 =
  33. 33.5.6 × 3.3 =
  34. 34.8.8 × 3.9 =
  35. 35.0.57 × 1.3 =
  36. 36.2.1 × 1.4 =
  37. 37.0.92 × 1.7 =
  38. 38.0.16 × 0.9 =
  39. 39.3.4 × 3.9 =
  40. 40.0.61 × 0.6 =

Answer key

  1. 0.396
  2. 0.768
  3. 0.122
  4. 1.104
  5. 22.23
  6. 0.85
  7. 9.5
  8. 0.728
  9. 0.57
  10. 2.38
  11. 1.116
  12. 14.58
  13. 2.465
  14. 1.647
  15. 11.96
  16. 0.057
  17. 0.028
  18. 18.25
  19. 2.403
  20. 0.476
  21. 1.053
  22. 0.084
  23. 3.68
  24. 16.92
  25. 0.567
  26. 1.932
  27. 0.342
  28. 0.355
  29. 1.098
  30. 0.064
  31. 16.12
  32. 1.025
  33. 18.48
  34. 34.32
  35. 0.741
  36. 2.94
  37. 1.564
  38. 0.144
  39. 13.26
  40. 0.366

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