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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 287 · 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. 1.4.7 × 3.3 =
  2. 2.4.1 × 1.8 =
  3. 3.1.6 × 0.13 =
  4. 4.0.6 × 0.11 =
  5. 5.0.71 × 2.4 =
  6. 6.3.2 × 3.1 =
  7. 7.2.2 × 0.31 =
  8. 8.9.8 × 0.4 =
  9. 9.6.7 × 0.02 =
  10. 10.2.7 × 1.6 =
  11. 11.2.5 × 0.5 =
  12. 12.6.2 × 0.25 =
  13. 13.1.7 × 0.22 =
  14. 14.0.51 × 2.5 =
  15. 15.0.73 × 1.8 =
  16. 16.0.31 × 2.8 =
  17. 17.5.2 × 2.6 =
  18. 18.9.4 × 0.14 =
  19. 19.0.86 × 3.1 =
  20. 20.0.77 × 2.9 =
  21. 21.0.68 × 3.1 =
  22. 22.1.5 × 0.5 =
  23. 23.0.66 × 0.4 =
  24. 24.0.29 × 1.4 =
  25. 25.0.81 × 0.2 =
  26. 26.0.93 × 1.9 =
  27. 27.0.59 × 0.9 =
  28. 28.0.96 × 3.8 =
  29. 29.0.2 × 1.2 =
  30. 30.0.91 × 2.1 =
  31. 31.0.15 × 1.7 =
  32. 32.0.96 × 2.1 =
  33. 33.3.8 × 0.09 =
  34. 34.0.62 × 1.7 =
  35. 35.2.4 × 3.1 =
  36. 36.0.11 × 2.6 =
  37. 37.7.5 × 0.11 =
  38. 38.0.15 × 0.9 =
  39. 39.6.2 × 1.2 =
  40. 40.7.1 × 2.5 =

Answer key

  1. 15.51
  2. 7.38
  3. 0.208
  4. 0.066
  5. 1.704
  6. 9.92
  7. 0.682
  8. 3.92
  9. 0.134
  10. 4.32
  11. 1.25
  12. 1.55
  13. 0.374
  14. 1.275
  15. 1.314
  16. 0.868
  17. 13.52
  18. 1.316
  19. 2.666
  20. 2.233
  21. 2.108
  22. 0.75
  23. 0.264
  24. 0.406
  25. 0.162
  26. 1.767
  27. 0.531
  28. 3.648
  29. 0.24
  30. 1.911
  31. 0.255
  32. 2.016
  33. 0.342
  34. 1.054
  35. 7.44
  36. 0.286
  37. 0.825
  38. 0.135
  39. 7.44
  40. 17.75

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