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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 189 · 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. 1.8.1 × 1.1 =
  2. 2.0.75 × 0.9 =
  3. 3.2.3 × 0.35 =
  4. 4.1.9 × 0.5 =
  5. 5.9.6 × 1.1 =
  6. 6.0.35 × 1.8 =
  7. 7.3.3 × 0.5 =
  8. 8.0.42 × 0.6 =
  9. 9.0.18 × 1.6 =
  10. 10.9.8 × 0.7 =
  11. 11.0.28 × 2.9 =
  12. 12.1.4 × 0.23 =
  13. 13.0.85 × 1.3 =
  14. 14.4.8 × 0.34 =
  15. 15.0.57 × 0.9 =
  16. 16.2.2 × 1.8 =
  17. 17.2.6 × 1.1 =
  18. 18.0.49 × 1.3 =
  19. 19.6.8 × 0.11 =
  20. 20.7.8 × 2.4 =
  21. 21.4.3 × 0.8 =
  22. 22.6.6 × 1.1 =
  23. 23.0.02 × 0.9 =
  24. 24.7.5 × 0.14 =
  25. 25.0.51 × 1.1 =
  26. 26.6.1 × 3.3 =
  27. 27.3.4 × 0.8 =
  28. 28.9.2 × 0.16 =
  29. 29.0.38 × 3.7 =
  30. 30.0.9 × 0.14 =
  31. 31.0.24 × 1.1 =
  32. 32.6.6 × 0.13 =
  33. 33.0.24 × 3.8 =
  34. 34.0.11 × 0.2 =
  35. 35.0.91 × 0.5 =
  36. 36.0.22 × 0.3 =
  37. 37.9.4 × 0.15 =
  38. 38.2.2 × 0.38 =
  39. 39.8.3 × 0.27 =
  40. 40.7.5 × 0.12 =

Answer key

  1. 8.91
  2. 0.675
  3. 0.805
  4. 0.95
  5. 10.56
  6. 0.63
  7. 1.65
  8. 0.252
  9. 0.288
  10. 6.86
  11. 0.812
  12. 0.322
  13. 1.105
  14. 1.632
  15. 0.513
  16. 3.96
  17. 2.86
  18. 0.637
  19. 0.748
  20. 18.72
  21. 3.44
  22. 7.26
  23. 0.018
  24. 1.05
  25. 0.561
  26. 20.13
  27. 2.72
  28. 1.472
  29. 1.406
  30. 0.126
  31. 0.264
  32. 0.858
  33. 0.912
  34. 0.022
  35. 0.455
  36. 0.066
  37. 1.41
  38. 0.836
  39. 2.241
  40. 0.9

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