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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 383 · 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. 1.0.6 × 2.8 =
  2. 2.0.2 × 0.36 =
  3. 3.0.61 × 0.3 =
  4. 4.0.67 × 0.3 =
  5. 5.2.2 × 0.9 =
  6. 6.0.43 × 0.3 =
  7. 7.0.27 × 3.3 =
  8. 8.0.05 × 0.8 =
  9. 9.0.15 × 0.8 =
  10. 10.3.9 × 3.7 =
  11. 11.9.3 × 1.5 =
  12. 12.4.6 × 1.7 =
  13. 13.0.41 × 0.8 =
  14. 14.0.63 × 0.6 =
  15. 15.0.59 × 0.3 =
  16. 16.1.7 × 3.8 =
  17. 17.3.7 × 3.9 =
  18. 18.1.7 × 0.02 =
  19. 19.2.5 × 0.25 =
  20. 20.0.11 × 3.7 =
  21. 21.5.9 × 0.07 =
  22. 22.0.13 × 1.7 =
  23. 23.0.13 × 1.5 =
  24. 24.2.2 × 0.06 =
  25. 25.1.2 × 2.7 =
  26. 26.0.33 × 3.1 =
  27. 27.0.91 × 1.9 =
  28. 28.0.99 × 0.4 =
  29. 29.1.8 × 0.5 =
  30. 30.0.05 × 3.1 =
  31. 31.5.9 × 2.1 =
  32. 32.1.6 × 3.6 =
  33. 33.0.7 × 0.9 =
  34. 34.0.02 × 1.9 =
  35. 35.0.82 × 0.9 =
  36. 36.9.7 × 3.2 =
  37. 37.4.7 × 2.1 =
  38. 38.2.4 × 2.6 =
  39. 39.7.5 × 1.2 =
  40. 40.0.91 × 3.1 =

Answer key

  1. 1.68
  2. 0.072
  3. 0.183
  4. 0.201
  5. 1.98
  6. 0.129
  7. 0.891
  8. 0.04
  9. 0.12
  10. 14.43
  11. 13.95
  12. 7.82
  13. 0.328
  14. 0.378
  15. 0.177
  16. 6.46
  17. 14.43
  18. 0.034
  19. 0.625
  20. 0.407
  21. 0.413
  22. 0.221
  23. 0.195
  24. 0.132
  25. 3.24
  26. 1.023
  27. 1.729
  28. 0.396
  29. 0.9
  30. 0.155
  31. 12.39
  32. 5.76
  33. 0.63
  34. 0.038
  35. 0.738
  36. 31.04
  37. 9.87
  38. 6.24
  39. 9
  40. 2.821

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