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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 222 · 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. 1.0.25 × 2.1 =
  2. 2.5.2 × 0.9 =
  3. 3.0.16 × 2.3 =
  4. 4.0.74 × 3.1 =
  5. 5.0.83 × 2.5 =
  6. 6.0.45 × 0.7 =
  7. 7.1.3 × 3.7 =
  8. 8.0.31 × 3.6 =
  9. 9.2.6 × 1.5 =
  10. 10.0.81 × 0.2 =
  11. 11.6.7 × 0.14 =
  12. 12.0.6 × 2.1 =
  13. 13.1.1 × 3.3 =
  14. 14.0.38 × 0.2 =
  15. 15.1.1 × 0.31 =
  16. 16.0.35 × 1.3 =
  17. 17.4.8 × 0.8 =
  18. 18.0.77 × 1.2 =
  19. 19.0.55 × 0.6 =
  20. 20.1.8 × 0.35 =
  21. 21.0.3 × 2.2 =
  22. 22.9.6 × 0.3 =
  23. 23.3.3 × 2.1 =
  24. 24.7.7 × 0.03 =
  25. 25.0.97 × 3.7 =
  26. 26.4.9 × 0.14 =
  27. 27.0.04 × 1.5 =
  28. 28.0.72 × 2.2 =
  29. 29.1.5 × 0.21 =
  30. 30.0.91 × 3.8 =
  31. 31.3.9 × 0.05 =
  32. 32.2.5 × 0.03 =
  33. 33.2.5 × 1.8 =
  34. 34.0.23 × 3.9 =
  35. 35.6.1 × 2.1 =
  36. 36.4.7 × 0.11 =
  37. 37.0.17 × 1.7 =
  38. 38.0.51 × 1.3 =
  39. 39.4.9 × 1.2 =
  40. 40.6.1 × 2.2 =

Answer key

  1. 0.525
  2. 4.68
  3. 0.368
  4. 2.294
  5. 2.075
  6. 0.315
  7. 4.81
  8. 1.116
  9. 3.9
  10. 0.162
  11. 0.938
  12. 1.26
  13. 3.63
  14. 0.076
  15. 0.341
  16. 0.455
  17. 3.84
  18. 0.924
  19. 0.33
  20. 0.63
  21. 0.66
  22. 2.88
  23. 6.93
  24. 0.231
  25. 3.589
  26. 0.686
  27. 0.06
  28. 1.584
  29. 0.315
  30. 3.458
  31. 0.195
  32. 0.075
  33. 4.5
  34. 0.897
  35. 12.81
  36. 0.517
  37. 0.289
  38. 0.663
  39. 5.88
  40. 13.42

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