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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 224 · 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. 1.0.82 × 2.8 =
  2. 2.0.61 × 3.6 =
  3. 3.0.76 × 0.8 =
  4. 4.9.8 × 0.14 =
  5. 5.2.9 × 2.5 =
  6. 6.0.44 × 3.2 =
  7. 7.0.66 × 3.1 =
  8. 8.0.81 × 1.5 =
  9. 9.0.98 × 2.4 =
  10. 10.0.19 × 0.3 =
  11. 11.0.9 × 0.27 =
  12. 12.3.7 × 0.37 =
  13. 13.0.99 × 0.9 =
  14. 14.0.37 × 0.7 =
  15. 15.4.2 × 0.05 =
  16. 16.0.77 × 0.2 =
  17. 17.8.1 × 2.1 =
  18. 18.3.6 × 3.1 =
  19. 19.0.69 × 0.5 =
  20. 20.8.3 × 1.8 =
  21. 21.0.65 × 1.9 =
  22. 22.9.1 × 2.4 =
  23. 23.4.3 × 0.4 =
  24. 24.3.5 × 0.9 =
  25. 25.0.7 × 2.1 =
  26. 26.1.1 × 0.35 =
  27. 27.6.9 × 0.05 =
  28. 28.0.47 × 0.3 =
  29. 29.2.6 × 1.2 =
  30. 30.0.12 × 3.5 =
  31. 31.0.04 × 0.7 =
  32. 32.6.2 × 0.07 =
  33. 33.8.7 × 0.14 =
  34. 34.8.3 × 0.4 =
  35. 35.0.77 × 3.7 =
  36. 36.5.2 × 0.3 =
  37. 37.0.61 × 2.6 =
  38. 38.0.89 × 3.6 =
  39. 39.2.1 × 3.1 =
  40. 40.0.19 × 0.7 =

Answer key

  1. 2.296
  2. 2.196
  3. 0.608
  4. 1.372
  5. 7.25
  6. 1.408
  7. 2.046
  8. 1.215
  9. 2.352
  10. 0.057
  11. 0.243
  12. 1.369
  13. 0.891
  14. 0.259
  15. 0.21
  16. 0.154
  17. 17.01
  18. 11.16
  19. 0.345
  20. 14.94
  21. 1.235
  22. 21.84
  23. 1.72
  24. 3.15
  25. 1.47
  26. 0.385
  27. 0.345
  28. 0.141
  29. 3.12
  30. 0.42
  31. 0.028
  32. 0.434
  33. 1.218
  34. 3.32
  35. 2.849
  36. 1.56
  37. 1.586
  38. 3.204
  39. 6.51
  40. 0.133

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