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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 152 · 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. 1.2.8 × 0.12 =
  2. 2.9.6 × 1.6 =
  3. 3.0.25 × 3.9 =
  4. 4.0.06 × 2.5 =
  5. 5.1.1 × 1.3 =
  6. 6.9.3 × 1.7 =
  7. 7.0.62 × 2.5 =
  8. 8.0.73 × 1.7 =
  9. 9.2.1 × 0.25 =
  10. 10.0.48 × 2.6 =
  11. 11.0.14 × 0.4 =
  12. 12.0.28 × 2.6 =
  13. 13.2.2 × 1.1 =
  14. 14.0.49 × 2.1 =
  15. 15.2.6 × 0.25 =
  16. 16.5.8 × 0.14 =
  17. 17.0.87 × 0.5 =
  18. 18.0.54 × 1.3 =
  19. 19.0.77 × 0.8 =
  20. 20.0.86 × 0.6 =
  21. 21.0.28 × 3.2 =
  22. 22.0.51 × 0.5 =
  23. 23.0.2 × 0.28 =
  24. 24.0.03 × 2.1 =
  25. 25.0.37 × 2.3 =
  26. 26.9.8 × 0.15 =
  27. 27.0.26 × 1.1 =
  28. 28.0.87 × 1.4 =
  29. 29.4.6 × 0.08 =
  30. 30.1.9 × 1.2 =
  31. 31.0.93 × 3.6 =
  32. 32.0.96 × 0.3 =
  33. 33.9.5 × 0.08 =
  34. 34.2.2 × 0.31 =
  35. 35.0.13 × 0.8 =
  36. 36.1.7 × 0.14 =
  37. 37.2.7 × 1.5 =
  38. 38.0.99 × 1.1 =
  39. 39.5.8 × 0.19 =
  40. 40.0.31 × 3.4 =

Answer key

  1. 0.336
  2. 15.36
  3. 0.975
  4. 0.15
  5. 1.43
  6. 15.81
  7. 1.55
  8. 1.241
  9. 0.525
  10. 1.248
  11. 0.056
  12. 0.728
  13. 2.42
  14. 1.029
  15. 0.65
  16. 0.812
  17. 0.435
  18. 0.702
  19. 0.616
  20. 0.516
  21. 0.896
  22. 0.255
  23. 0.056
  24. 0.063
  25. 0.851
  26. 1.47
  27. 0.286
  28. 1.218
  29. 0.368
  30. 2.28
  31. 3.348
  32. 0.288
  33. 0.76
  34. 0.682
  35. 0.104
  36. 0.238
  37. 4.05
  38. 1.089
  39. 1.102
  40. 1.054

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