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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 305 · 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. 1.7.4 × 2.5 =
  2. 2.1.8 × 3.4 =
  3. 3.0.15 × 3.8 =
  4. 4.2.1 × 0.04 =
  5. 5.0.71 × 1.2 =
  6. 6.0.69 × 3.1 =
  7. 7.0.87 × 1.9 =
  8. 8.2.2 × 3.3 =
  9. 9.0.66 × 0.9 =
  10. 10.0.39 × 1.6 =
  11. 11.1.8 × 0.05 =
  12. 12.9.4 × 0.7 =
  13. 13.0.77 × 0.8 =
  14. 14.5.1 × 0.9 =
  15. 15.0.31 × 2.1 =
  16. 16.4.3 × 0.26 =
  17. 17.0.71 × 0.7 =
  18. 18.5.1 × 0.07 =
  19. 19.9.1 × 1.8 =
  20. 20.8.9 × 0.24 =
  21. 21.1.8 × 0.11 =
  22. 22.0.28 × 2.4 =
  23. 23.2.1 × 3.3 =
  24. 24.3.5 × 0.03 =
  25. 25.0.62 × 2.6 =
  26. 26.1.8 × 0.09 =
  27. 27.0.32 × 1.6 =
  28. 28.0.08 × 2.5 =
  29. 29.0.6 × 0.35 =
  30. 30.0.3 × 0.16 =
  31. 31.0.49 × 3.1 =
  32. 32.0.14 × 1.3 =
  33. 33.0.2 × 3.5 =
  34. 34.0.7 × 0.19 =
  35. 35.0.06 × 3.1 =
  36. 36.6.1 × 0.18 =
  37. 37.0.13 × 2.2 =
  38. 38.2.2 × 3.8 =
  39. 39.1.6 × 0.08 =
  40. 40.0.25 × 0.8 =

Answer key

  1. 18.5
  2. 6.12
  3. 0.57
  4. 0.084
  5. 0.852
  6. 2.139
  7. 1.653
  8. 7.26
  9. 0.594
  10. 0.624
  11. 0.09
  12. 6.58
  13. 0.616
  14. 4.59
  15. 0.651
  16. 1.118
  17. 0.497
  18. 0.357
  19. 16.38
  20. 2.136
  21. 0.198
  22. 0.672
  23. 6.93
  24. 0.105
  25. 1.612
  26. 0.162
  27. 0.512
  28. 0.2
  29. 0.21
  30. 0.048
  31. 1.519
  32. 0.182
  33. 0.7
  34. 0.133
  35. 0.186
  36. 1.098
  37. 0.286
  38. 8.36
  39. 0.128
  40. 0.2

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