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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 488 · 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. 1.5.6 × 0.12 =
  2. 2.0.19 × 2.7 =
  3. 3.7.9 × 0.04 =
  4. 4.0.83 × 0.6 =
  5. 5.0.79 × 3.6 =
  6. 6.9.4 × 0.25 =
  7. 7.0.66 × 1.8 =
  8. 8.2.1 × 0.03 =
  9. 9.7.9 × 0.22 =
  10. 10.0.59 × 0.4 =
  11. 11.0.8 × 0.9 =
  12. 12.0.27 × 1.2 =
  13. 13.7.8 × 1.2 =
  14. 14.0.69 × 3.2 =
  15. 15.5.4 × 0.26 =
  16. 16.0.08 × 3.5 =
  17. 17.0.54 × 1.3 =
  18. 18.5.5 × 1.9 =
  19. 19.0.22 × 0.3 =
  20. 20.3.3 × 0.39 =
  21. 21.0.16 × 2.5 =
  22. 22.1.4 × 0.9 =
  23. 23.9.9 × 1.3 =
  24. 24.0.3 × 0.02 =
  25. 25.0.82 × 0.5 =
  26. 26.0.41 × 0.4 =
  27. 27.2.3 × 2.4 =
  28. 28.0.51 × 2.1 =
  29. 29.2.1 × 0.6 =
  30. 30.0.19 × 1.1 =
  31. 31.0.22 × 1.4 =
  32. 32.0.16 × 2.6 =
  33. 33.3.1 × 2.8 =
  34. 34.0.67 × 2.7 =
  35. 35.0.73 × 3.6 =
  36. 36.8.5 × 0.26 =
  37. 37.0.64 × 1.6 =
  38. 38.0.77 × 0.5 =
  39. 39.7.2 × 0.05 =
  40. 40.9.9 × 1.7 =

Answer key

  1. 0.672
  2. 0.513
  3. 0.316
  4. 0.498
  5. 2.844
  6. 2.35
  7. 1.188
  8. 0.063
  9. 1.738
  10. 0.236
  11. 0.72
  12. 0.324
  13. 9.36
  14. 2.208
  15. 1.404
  16. 0.28
  17. 0.702
  18. 10.45
  19. 0.066
  20. 1.287
  21. 0.4
  22. 1.26
  23. 12.87
  24. 0.006
  25. 0.41
  26. 0.164
  27. 5.52
  28. 1.071
  29. 1.26
  30. 0.209
  31. 0.308
  32. 0.416
  33. 8.68
  34. 1.809
  35. 2.628
  36. 2.21
  37. 1.024
  38. 0.385
  39. 0.36
  40. 16.83

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