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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 742 · 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. 1.1.9 × 0.05 =
  2. 2.1.1 × 3.4 =
  3. 3.0.3 × 3.9 =
  4. 4.0.63 × 3.2 =
  5. 5.1.6 × 1.4 =
  6. 6.4.5 × 0.08 =
  7. 7.0.47 × 3.1 =
  8. 8.5.8 × 1.5 =
  9. 9.2.4 × 3.9 =
  10. 10.1.9 × 1.1 =
  11. 11.2.5 × 0.25 =
  12. 12.0.98 × 3.1 =
  13. 13.0.94 × 0.7 =
  14. 14.0.18 × 3.1 =
  15. 15.5.7 × 3.4 =
  16. 16.2.8 × 0.7 =
  17. 17.0.28 × 1.1 =
  18. 18.0.82 × 3.1 =
  19. 19.4.8 × 0.4 =
  20. 20.0.31 × 1.1 =
  21. 21.0.51 × 2.4 =
  22. 22.8.2 × 1.5 =
  23. 23.0.63 × 2.9 =
  24. 24.0.7 × 0.19 =
  25. 25.0.37 × 2.2 =
  26. 26.0.94 × 2.8 =
  27. 27.5.6 × 0.29 =
  28. 28.0.55 × 3.6 =
  29. 29.6.2 × 0.27 =
  30. 30.0.51 × 1.1 =
  31. 31.7.4 × 0.38 =
  32. 32.0.59 × 0.2 =
  33. 33.0.13 × 2.3 =
  34. 34.9.2 × 1.9 =
  35. 35.0.48 × 3.4 =
  36. 36.2.1 × 1.3 =
  37. 37.0.9 × 3.1 =
  38. 38.0.38 × 2.1 =
  39. 39.5.2 × 3.6 =
  40. 40.3.5 × 0.02 =

Answer key

  1. 0.095
  2. 3.74
  3. 1.17
  4. 2.016
  5. 2.24
  6. 0.36
  7. 1.457
  8. 8.7
  9. 9.36
  10. 2.09
  11. 0.625
  12. 3.038
  13. 0.658
  14. 0.558
  15. 19.38
  16. 1.96
  17. 0.308
  18. 2.542
  19. 1.92
  20. 0.341
  21. 1.224
  22. 12.3
  23. 1.827
  24. 0.133
  25. 0.814
  26. 2.632
  27. 1.624
  28. 1.98
  29. 1.674
  30. 0.561
  31. 2.812
  32. 0.118
  33. 0.299
  34. 17.48
  35. 1.632
  36. 2.73
  37. 2.79
  38. 0.798
  39. 18.72
  40. 0.07

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