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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 452 · 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. 1.0.46 × 2.8 =
  2. 2.0.81 × 3.6 =
  3. 3.2.2 × 0.39 =
  4. 4.0.18 × 1.9 =
  5. 5.4.5 × 0.07 =
  6. 6.3.5 × 0.37 =
  7. 7.9.7 × 0.04 =
  8. 8.5.1 × 0.29 =
  9. 9.0.7 × 1.1 =
  10. 10.2.4 × 3.4 =
  11. 11.2.8 × 3.1 =
  12. 12.5.9 × 1.2 =
  13. 13.5.6 × 0.6 =
  14. 14.0.04 × 1.4 =
  15. 15.2.9 × 1.6 =
  16. 16.0.49 × 2.1 =
  17. 17.8.1 × 2.7 =
  18. 18.2.1 × 1.1 =
  19. 19.8.7 × 0.36 =
  20. 20.0.58 × 1.3 =
  21. 21.0.24 × 2.6 =
  22. 22.4.5 × 0.25 =
  23. 23.0.9 × 0.23 =
  24. 24.4.6 × 3.1 =
  25. 25.0.28 × 2.1 =
  26. 26.0.72 × 1.6 =
  27. 27.6.2 × 0.19 =
  28. 28.0.83 × 2.7 =
  29. 29.0.45 × 2.4 =
  30. 30.1.1 × 0.36 =
  31. 31.3.2 × 0.28 =
  32. 32.0.79 × 3.5 =
  33. 33.0.6 × 0.03 =
  34. 34.0.91 × 2.5 =
  35. 35.6.1 × 0.31 =
  36. 36.8.7 × 3.9 =
  37. 37.3.6 × 0.06 =
  38. 38.5.7 × 0.2 =
  39. 39.0.05 × 1.5 =
  40. 40.3.4 × 1.4 =

Answer key

  1. 1.288
  2. 2.916
  3. 0.858
  4. 0.342
  5. 0.315
  6. 1.295
  7. 0.388
  8. 1.479
  9. 0.77
  10. 8.16
  11. 8.68
  12. 7.08
  13. 3.36
  14. 0.056
  15. 4.64
  16. 1.029
  17. 21.87
  18. 2.31
  19. 3.132
  20. 0.754
  21. 0.624
  22. 1.125
  23. 0.207
  24. 14.26
  25. 0.588
  26. 1.152
  27. 1.178
  28. 2.241
  29. 1.08
  30. 0.396
  31. 0.896
  32. 2.765
  33. 0.018
  34. 2.275
  35. 1.891
  36. 33.93
  37. 0.216
  38. 1.14
  39. 0.075
  40. 4.76

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