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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 482 · 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. 1.1.3 × 0.8 =
  2. 2.2.5 × 0.18 =
  3. 3.0.13 × 0.9 =
  4. 4.0.23 × 2.1 =
  5. 5.2.9 × 2.6 =
  6. 6.3.1 × 3.5 =
  7. 7.0.59 × 0.3 =
  8. 8.1.9 × 0.22 =
  9. 9.0.21 × 2.7 =
  10. 10.2.3 × 3.1 =
  11. 11.0.56 × 0.4 =
  12. 12.0.55 × 0.7 =
  13. 13.9.2 × 0.32 =
  14. 14.0.14 × 2.2 =
  15. 15.0.78 × 3.1 =
  16. 16.4.5 × 0.9 =
  17. 17.0.57 × 1.4 =
  18. 18.0.28 × 3.5 =
  19. 19.6.4 × 0.22 =
  20. 20.0.52 × 1.4 =
  21. 21.7.2 × 0.09 =
  22. 22.2.1 × 3.3 =
  23. 23.6.1 × 2.6 =
  24. 24.7.5 × 1.6 =
  25. 25.0.15 × 3.5 =
  26. 26.0.62 × 2.9 =
  27. 27.8.5 × 3.5 =
  28. 28.9.2 × 0.11 =
  29. 29.0.61 × 2.3 =
  30. 30.0.99 × 1.1 =
  31. 31.9.8 × 0.07 =
  32. 32.1.6 × 0.3 =
  33. 33.0.63 × 1.3 =
  34. 34.0.04 × 1.4 =
  35. 35.5.5 × 3.3 =
  36. 36.0.16 × 1.9 =
  37. 37.0.79 × 1.9 =
  38. 38.2.7 × 3.1 =
  39. 39.0.63 × 0.7 =
  40. 40.0.61 × 1.5 =

Answer key

  1. 1.04
  2. 0.45
  3. 0.117
  4. 0.483
  5. 7.54
  6. 10.85
  7. 0.177
  8. 0.418
  9. 0.567
  10. 7.13
  11. 0.224
  12. 0.385
  13. 2.944
  14. 0.308
  15. 2.418
  16. 4.05
  17. 0.798
  18. 0.98
  19. 1.408
  20. 0.728
  21. 0.648
  22. 6.93
  23. 15.86
  24. 12
  25. 0.525
  26. 1.798
  27. 29.75
  28. 1.012
  29. 1.403
  30. 1.089
  31. 0.686
  32. 0.48
  33. 0.819
  34. 0.056
  35. 18.15
  36. 0.304
  37. 1.501
  38. 8.37
  39. 0.441
  40. 0.915

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