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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 248 · 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. 1.0.98 × 1.1 =
  2. 2.0.15 × 2.5 =
  3. 3.0.81 × 3.8 =
  4. 4.0.07 × 2.4 =
  5. 5.1.6 × 3.1 =
  6. 6.0.25 × 2.1 =
  7. 7.3.4 × 0.36 =
  8. 8.3.2 × 0.34 =
  9. 9.0.46 × 3.8 =
  10. 10.0.14 × 2.2 =
  11. 11.8.8 × 0.03 =
  12. 12.0.04 × 1.9 =
  13. 13.1.6 × 0.36 =
  14. 14.0.54 × 1.7 =
  15. 15.4.6 × 3.3 =
  16. 16.0.83 × 0.4 =
  17. 17.0.11 × 1.1 =
  18. 18.0.23 × 1.3 =
  19. 19.0.44 × 0.4 =
  20. 20.0.87 × 1.4 =
  21. 21.0.73 × 0.2 =
  22. 22.7.7 × 0.34 =
  23. 23.7.8 × 1.1 =
  24. 24.8.5 × 0.9 =
  25. 25.0.61 × 3.7 =
  26. 26.1.2 × 0.4 =
  27. 27.8.1 × 2.6 =
  28. 28.0.37 × 0.3 =
  29. 29.0.66 × 0.7 =
  30. 30.0.08 × 2.9 =
  31. 31.0.21 × 3.7 =
  32. 32.0.53 × 0.4 =
  33. 33.3.5 × 0.11 =
  34. 34.3.1 × 3.6 =
  35. 35.0.37 × 1.3 =
  36. 36.9.4 × 2.2 =
  37. 37.4.1 × 0.8 =
  38. 38.0.59 × 3.5 =
  39. 39.0.9 × 0.5 =
  40. 40.0.48 × 3.6 =

Answer key

  1. 1.078
  2. 0.375
  3. 3.078
  4. 0.168
  5. 4.96
  6. 0.525
  7. 1.224
  8. 1.088
  9. 1.748
  10. 0.308
  11. 0.264
  12. 0.076
  13. 0.576
  14. 0.918
  15. 15.18
  16. 0.332
  17. 0.121
  18. 0.299
  19. 0.176
  20. 1.218
  21. 0.146
  22. 2.618
  23. 8.58
  24. 7.65
  25. 2.257
  26. 0.48
  27. 21.06
  28. 0.111
  29. 0.462
  30. 0.232
  31. 0.777
  32. 0.212
  33. 0.385
  34. 11.16
  35. 0.481
  36. 20.68
  37. 3.28
  38. 2.065
  39. 0.45
  40. 1.728

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