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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 752 · 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. 1.6.6 × 0.17 =
  2. 2.0.26 × 3.1 =
  3. 3.0.81 × 3.1 =
  4. 4.0.59 × 1.7 =
  5. 5.0.02 × 0.8 =
  6. 6.4.1 × 0.02 =
  7. 7.8.1 × 0.37 =
  8. 8.0.15 × 2.9 =
  9. 9.0.4 × 0.08 =
  10. 10.0.29 × 3.1 =
  11. 11.0.23 × 0.2 =
  12. 12.0.13 × 3.7 =
  13. 13.0.68 × 1.3 =
  14. 14.7.6 × 0.6 =
  15. 15.4.4 × 0.9 =
  16. 16.0.15 × 3.4 =
  17. 17.0.52 × 0.9 =
  18. 18.0.84 × 0.4 =
  19. 19.0.73 × 3.5 =
  20. 20.0.9 × 0.15 =
  21. 21.7.4 × 0.06 =
  22. 22.4.2 × 0.21 =
  23. 23.0.03 × 2.7 =
  24. 24.0.4 × 0.4 =
  25. 25.7.8 × 1.6 =
  26. 26.4.3 × 0.8 =
  27. 27.0.65 × 2.9 =
  28. 28.2.8 × 0.35 =
  29. 29.0.35 × 2.1 =
  30. 30.0.02 × 3.9 =
  31. 31.8.6 × 0.22 =
  32. 32.1.6 × 0.37 =
  33. 33.3.9 × 0.16 =
  34. 34.0.28 × 0.6 =
  35. 35.0.15 × 1.5 =
  36. 36.0.57 × 0.8 =
  37. 37.4.5 × 0.35 =
  38. 38.0.71 × 3.2 =
  39. 39.9.1 × 0.03 =
  40. 40.0.28 × 1.1 =

Answer key

  1. 1.122
  2. 0.806
  3. 2.511
  4. 1.003
  5. 0.016
  6. 0.082
  7. 2.997
  8. 0.435
  9. 0.032
  10. 0.899
  11. 0.046
  12. 0.481
  13. 0.884
  14. 4.56
  15. 3.96
  16. 0.51
  17. 0.468
  18. 0.336
  19. 2.555
  20. 0.135
  21. 0.444
  22. 0.882
  23. 0.081
  24. 0.16
  25. 12.48
  26. 3.44
  27. 1.885
  28. 0.98
  29. 0.735
  30. 0.078
  31. 1.892
  32. 0.592
  33. 0.624
  34. 0.168
  35. 0.225
  36. 0.456
  37. 1.575
  38. 2.272
  39. 0.273
  40. 0.308

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