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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 201 · 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. 1.0.8 × 0.6 =
  2. 2.0.39 × 0.9 =
  3. 3.0.99 × 1.9 =
  4. 4.0.48 × 1.1 =
  5. 5.6.8 × 0.4 =
  6. 6.0.08 × 2.4 =
  7. 7.0.63 × 3.2 =
  8. 8.8.3 × 0.05 =
  9. 9.0.18 × 1.6 =
  10. 10.8.9 × 0.24 =
  11. 11.0.54 × 3.9 =
  12. 12.6.2 × 0.8 =
  13. 13.0.26 × 2.9 =
  14. 14.0.46 × 2.4 =
  15. 15.7.5 × 0.28 =
  16. 16.3.1 × 0.31 =
  17. 17.0.79 × 3.2 =
  18. 18.2.9 × 2.1 =
  19. 19.2.5 × 0.07 =
  20. 20.0.03 × 2.7 =
  21. 21.5.4 × 0.04 =
  22. 22.8.4 × 0.8 =
  23. 23.6.8 × 0.8 =
  24. 24.0.62 × 0.5 =
  25. 25.3.7 × 0.7 =
  26. 26.9.5 × 3.7 =
  27. 27.2.8 × 0.6 =
  28. 28.5.1 × 0.31 =
  29. 29.0.5 × 0.32 =
  30. 30.0.31 × 0.3 =
  31. 31.0.65 × 0.3 =
  32. 32.5.5 × 0.11 =
  33. 33.3.8 × 0.2 =
  34. 34.4.8 × 3.1 =
  35. 35.0.99 × 2.6 =
  36. 36.0.43 × 3.5 =
  37. 37.0.53 × 0.5 =
  38. 38.2.2 × 0.36 =
  39. 39.0.83 × 3.5 =
  40. 40.0.29 × 2.8 =

Answer key

  1. 0.48
  2. 0.351
  3. 1.881
  4. 0.528
  5. 2.72
  6. 0.192
  7. 2.016
  8. 0.415
  9. 0.288
  10. 2.136
  11. 2.106
  12. 4.96
  13. 0.754
  14. 1.104
  15. 2.1
  16. 0.961
  17. 2.528
  18. 6.09
  19. 0.175
  20. 0.081
  21. 0.216
  22. 6.72
  23. 5.44
  24. 0.31
  25. 2.59
  26. 35.15
  27. 1.68
  28. 1.581
  29. 0.16
  30. 0.093
  31. 0.195
  32. 0.605
  33. 0.76
  34. 14.88
  35. 2.574
  36. 1.505
  37. 0.265
  38. 0.792
  39. 2.905
  40. 0.812

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