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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 186 · 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. 1.0.84 × 0.5 =
  2. 2.3.2 × 0.38 =
  3. 3.0.22 × 0.6 =
  4. 4.0.59 × 1.5 =
  5. 5.0.86 × 1.9 =
  6. 6.4.8 × 1.3 =
  7. 7.0.71 × 2.3 =
  8. 8.0.14 × 3.7 =
  9. 9.3.9 × 0.21 =
  10. 10.3.3 × 0.18 =
  11. 11.8.1 × 1.1 =
  12. 12.5.7 × 1.1 =
  13. 13.0.36 × 0.7 =
  14. 14.0.73 × 3.1 =
  15. 15.0.08 × 3.1 =
  16. 16.0.81 × 3.7 =
  17. 17.0.04 × 0.4 =
  18. 18.7.2 × 3.6 =
  19. 19.0.07 × 0.2 =
  20. 20.9.9 × 0.22 =
  21. 21.0.32 × 2.1 =
  22. 22.0.55 × 2.2 =
  23. 23.0.09 × 1.7 =
  24. 24.7.1 × 2.5 =
  25. 25.7.1 × 0.21 =
  26. 26.1.2 × 0.18 =
  27. 27.0.98 × 1.3 =
  28. 28.6.2 × 3.1 =
  29. 29.0.91 × 2.8 =
  30. 30.0.96 × 0.7 =
  31. 31.0.07 × 3.5 =
  32. 32.0.19 × 3.1 =
  33. 33.0.78 × 2.1 =
  34. 34.0.2 × 0.08 =
  35. 35.0.7 × 0.32 =
  36. 36.8.1 × 0.36 =
  37. 37.3.6 × 3.5 =
  38. 38.9.5 × 0.18 =
  39. 39.1.2 × 0.8 =
  40. 40.0.26 × 2.7 =

Answer key

  1. 0.42
  2. 1.216
  3. 0.132
  4. 0.885
  5. 1.634
  6. 6.24
  7. 1.633
  8. 0.518
  9. 0.819
  10. 0.594
  11. 8.91
  12. 6.27
  13. 0.252
  14. 2.263
  15. 0.248
  16. 2.997
  17. 0.016
  18. 25.92
  19. 0.014
  20. 2.178
  21. 0.672
  22. 1.21
  23. 0.153
  24. 17.75
  25. 1.491
  26. 0.216
  27. 1.274
  28. 19.22
  29. 2.548
  30. 0.672
  31. 0.245
  32. 0.589
  33. 1.638
  34. 0.016
  35. 0.224
  36. 2.916
  37. 12.6
  38. 1.71
  39. 0.96
  40. 0.702

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