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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 117 · 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. 1.4.4 × 0.32 =
  2. 2.9.3 × 0.38 =
  3. 3.0.53 × 2.2 =
  4. 4.8.7 × 1.1 =
  5. 5.5.4 × 0.31 =
  6. 6.0.23 × 0.8 =
  7. 7.4.7 × 0.24 =
  8. 8.0.76 × 0.9 =
  9. 9.0.69 × 3.6 =
  10. 10.0.07 × 2.7 =
  11. 11.5.4 × 0.36 =
  12. 12.0.16 × 1.5 =
  13. 13.0.06 × 1.1 =
  14. 14.9.1 × 0.13 =
  15. 15.0.51 × 0.2 =
  16. 16.0.02 × 3.8 =
  17. 17.0.17 × 0.7 =
  18. 18.0.62 × 2.5 =
  19. 19.3.6 × 2.6 =
  20. 20.0.22 × 3.6 =
  21. 21.1.8 × 2.5 =
  22. 22.0.54 × 2.8 =
  23. 23.0.65 × 0.6 =
  24. 24.0.3 × 1.3 =
  25. 25.8.5 × 3.5 =
  26. 26.3.7 × 0.39 =
  27. 27.0.33 × 1.7 =
  28. 28.5.8 × 1.1 =
  29. 29.5.4 × 0.26 =
  30. 30.0.47 × 1.8 =
  31. 31.0.8 × 3.7 =
  32. 32.0.72 × 1.8 =
  33. 33.8.1 × 0.04 =
  34. 34.0.25 × 2.2 =
  35. 35.0.65 × 3.5 =
  36. 36.3.4 × 0.7 =
  37. 37.6.2 × 0.18 =
  38. 38.0.29 × 3.4 =
  39. 39.0.11 × 2.1 =
  40. 40.0.96 × 3.1 =

Answer key

  1. 1.408
  2. 3.534
  3. 1.166
  4. 9.57
  5. 1.674
  6. 0.184
  7. 1.128
  8. 0.684
  9. 2.484
  10. 0.189
  11. 1.944
  12. 0.24
  13. 0.066
  14. 1.183
  15. 0.102
  16. 0.076
  17. 0.119
  18. 1.55
  19. 9.36
  20. 0.792
  21. 4.5
  22. 1.512
  23. 0.39
  24. 0.39
  25. 29.75
  26. 1.443
  27. 0.561
  28. 6.38
  29. 1.404
  30. 0.846
  31. 2.96
  32. 1.296
  33. 0.324
  34. 0.55
  35. 2.275
  36. 2.38
  37. 1.116
  38. 0.986
  39. 0.231
  40. 2.976

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