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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 331 · 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. 1.2.3 × 0.8 =
  2. 2.0.78 × 3.7 =
  3. 3.0.3 × 0.6 =
  4. 4.0.91 × 0.3 =
  5. 5.0.5 × 0.24 =
  6. 6.6.1 × 2.9 =
  7. 7.0.83 × 0.6 =
  8. 8.0.91 × 0.3 =
  9. 9.4.9 × 0.08 =
  10. 10.0.41 × 0.4 =
  11. 11.0.31 × 3.7 =
  12. 12.0.81 × 3.5 =
  13. 13.0.21 × 3.7 =
  14. 14.0.98 × 3.5 =
  15. 15.0.41 × 3.1 =
  16. 16.0.54 × 3.4 =
  17. 17.0.08 × 0.9 =
  18. 18.0.66 × 0.7 =
  19. 19.9.4 × 3.1 =
  20. 20.8.4 × 0.11 =
  21. 21.9.2 × 0.31 =
  22. 22.9.7 × 0.04 =
  23. 23.9.6 × 3.7 =
  24. 24.0.14 × 1.4 =
  25. 25.0.07 × 0.9 =
  26. 26.0.05 × 3.3 =
  27. 27.0.77 × 2.3 =
  28. 28.0.84 × 3.2 =
  29. 29.0.5 × 0.5 =
  30. 30.5.6 × 0.37 =
  31. 31.0.71 × 2.5 =
  32. 32.9.5 × 0.03 =
  33. 33.0.95 × 3.9 =
  34. 34.0.29 × 0.8 =
  35. 35.0.52 × 3.4 =
  36. 36.8.7 × 0.36 =
  37. 37.1.7 × 0.28 =
  38. 38.7.4 × 0.04 =
  39. 39.1.5 × 3.1 =
  40. 40.9.1 × 0.13 =

Answer key

  1. 1.84
  2. 2.886
  3. 0.18
  4. 0.273
  5. 0.12
  6. 17.69
  7. 0.498
  8. 0.273
  9. 0.392
  10. 0.164
  11. 1.147
  12. 2.835
  13. 0.777
  14. 3.43
  15. 1.271
  16. 1.836
  17. 0.072
  18. 0.462
  19. 29.14
  20. 0.924
  21. 2.852
  22. 0.388
  23. 35.52
  24. 0.196
  25. 0.063
  26. 0.165
  27. 1.771
  28. 2.688
  29. 0.25
  30. 2.072
  31. 1.775
  32. 0.285
  33. 3.705
  34. 0.232
  35. 1.768
  36. 3.132
  37. 0.476
  38. 0.296
  39. 4.65
  40. 1.183

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