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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 554 · 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. 1.0.21 × 0.7 =
  2. 2.0.79 × 3.2 =
  3. 3.2.1 × 0.02 =
  4. 4.0.54 × 0.9 =
  5. 5.0.43 × 3.9 =
  6. 6.4.8 × 0.12 =
  7. 7.0.02 × 1.4 =
  8. 8.2.8 × 0.32 =
  9. 9.9.4 × 0.13 =
  10. 10.5.4 × 0.04 =
  11. 11.5.5 × 1.2 =
  12. 12.0.61 × 3.4 =
  13. 13.0.21 × 3.5 =
  14. 14.0.99 × 0.8 =
  15. 15.9.2 × 0.05 =
  16. 16.8.4 × 0.8 =
  17. 17.2.5 × 0.24 =
  18. 18.4.5 × 0.7 =
  19. 19.8.1 × 0.34 =
  20. 20.0.25 × 1.5 =
  21. 21.0.41 × 3.9 =
  22. 22.6.9 × 1.9 =
  23. 23.0.07 × 3.9 =
  24. 24.0.16 × 0.3 =
  25. 25.1.5 × 1.1 =
  26. 26.9.5 × 0.37 =
  27. 27.7.7 × 1.2 =
  28. 28.5.5 × 0.07 =
  29. 29.0.81 × 0.4 =
  30. 30.1.2 × 0.27 =
  31. 31.8.2 × 2.1 =
  32. 32.2.5 × 3.8 =
  33. 33.0.22 × 0.7 =
  34. 34.4.1 × 0.25 =
  35. 35.3.7 × 0.14 =
  36. 36.0.24 × 2.1 =
  37. 37.6.4 × 0.21 =
  38. 38.0.64 × 3.5 =
  39. 39.0.77 × 1.1 =
  40. 40.0.18 × 1.6 =

Answer key

  1. 0.147
  2. 2.528
  3. 0.042
  4. 0.486
  5. 1.677
  6. 0.576
  7. 0.028
  8. 0.896
  9. 1.222
  10. 0.216
  11. 6.6
  12. 2.074
  13. 0.735
  14. 0.792
  15. 0.46
  16. 6.72
  17. 0.6
  18. 3.15
  19. 2.754
  20. 0.375
  21. 1.599
  22. 13.11
  23. 0.273
  24. 0.048
  25. 1.65
  26. 3.515
  27. 9.24
  28. 0.385
  29. 0.324
  30. 0.324
  31. 17.22
  32. 9.5
  33. 0.154
  34. 1.025
  35. 0.518
  36. 0.504
  37. 1.344
  38. 2.24
  39. 0.847
  40. 0.288

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