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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 732 · 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. 1.0.05 × 0.7 =
  2. 2.0.65 × 2.6 =
  3. 3.5.8 × 2.4 =
  4. 4.0.31 × 2.2 =
  5. 5.0.09 × 2.7 =
  6. 6.9.7 × 0.08 =
  7. 7.9.6 × 0.07 =
  8. 8.0.55 × 2.8 =
  9. 9.1.8 × 2.9 =
  10. 10.7.6 × 0.17 =
  11. 11.0.75 × 3.5 =
  12. 12.0.71 × 1.5 =
  13. 13.0.69 × 1.4 =
  14. 14.0.91 × 0.5 =
  15. 15.0.08 × 3.3 =
  16. 16.5.6 × 2.4 =
  17. 17.0.32 × 0.6 =
  18. 18.6.7 × 0.22 =
  19. 19.0.32 × 3.1 =
  20. 20.0.49 × 3.9 =
  21. 21.0.47 × 3.1 =
  22. 22.0.76 × 1.4 =
  23. 23.0.23 × 0.7 =
  24. 24.0.81 × 1.3 =
  25. 25.0.23 × 2.7 =
  26. 26.0.33 × 2.2 =
  27. 27.0.2 × 0.33 =
  28. 28.3.7 × 3.2 =
  29. 29.7.1 × 0.02 =
  30. 30.0.73 × 1.2 =
  31. 31.0.33 × 0.9 =
  32. 32.8.7 × 3.5 =
  33. 33.0.31 × 0.2 =
  34. 34.0.11 × 2.1 =
  35. 35.0.75 × 1.5 =
  36. 36.0.06 × 0.3 =
  37. 37.0.36 × 3.6 =
  38. 38.0.21 × 2.5 =
  39. 39.0.12 × 0.5 =
  40. 40.2.1 × 2.5 =

Answer key

  1. 0.035
  2. 1.69
  3. 13.92
  4. 0.682
  5. 0.243
  6. 0.776
  7. 0.672
  8. 1.54
  9. 5.22
  10. 1.292
  11. 2.625
  12. 1.065
  13. 0.966
  14. 0.455
  15. 0.264
  16. 13.44
  17. 0.192
  18. 1.474
  19. 0.992
  20. 1.911
  21. 1.457
  22. 1.064
  23. 0.161
  24. 1.053
  25. 0.621
  26. 0.726
  27. 0.066
  28. 11.84
  29. 0.142
  30. 0.876
  31. 0.297
  32. 30.45
  33. 0.062
  34. 0.231
  35. 1.125
  36. 0.018
  37. 1.296
  38. 0.525
  39. 0.06
  40. 5.25

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