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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 555 · 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. 1.0.06 × 2.3 =
  2. 2.0.44 × 0.9 =
  3. 3.6.7 × 0.6 =
  4. 4.0.8 × 0.07 =
  5. 5.0.69 × 1.1 =
  6. 6.9.7 × 2.7 =
  7. 7.2.1 × 0.16 =
  8. 8.0.3 × 0.33 =
  9. 9.0.49 × 0.3 =
  10. 10.3.2 × 3.1 =
  11. 11.0.58 × 0.6 =
  12. 12.7.7 × 2.3 =
  13. 13.1.2 × 0.23 =
  14. 14.8.9 × 0.34 =
  15. 15.0.04 × 1.9 =
  16. 16.4.3 × 3.4 =
  17. 17.0.05 × 1.1 =
  18. 18.0.7 × 2.1 =
  19. 19.5.5 × 0.31 =
  20. 20.0.87 × 1.5 =
  21. 21.6.1 × 2.2 =
  22. 22.0.77 × 2.4 =
  23. 23.0.49 × 1.6 =
  24. 24.0.71 × 0.6 =
  25. 25.8.8 × 0.2 =
  26. 26.1.5 × 0.36 =
  27. 27.0.28 × 1.1 =
  28. 28.2.2 × 0.39 =
  29. 29.0.41 × 1.9 =
  30. 30.0.48 × 0.9 =
  31. 31.4.1 × 2.4 =
  32. 32.7.7 × 3.2 =
  33. 33.5.8 × 0.4 =
  34. 34.0.78 × 1.2 =
  35. 35.3.1 × 2.1 =
  36. 36.0.69 × 0.9 =
  37. 37.8.1 × 0.18 =
  38. 38.3.1 × 0.13 =
  39. 39.2.7 × 0.18 =
  40. 40.8.7 × 3.9 =

Answer key

  1. 0.138
  2. 0.396
  3. 4.02
  4. 0.056
  5. 0.759
  6. 26.19
  7. 0.336
  8. 0.099
  9. 0.147
  10. 9.92
  11. 0.348
  12. 17.71
  13. 0.276
  14. 3.026
  15. 0.076
  16. 14.62
  17. 0.055
  18. 1.47
  19. 1.705
  20. 1.305
  21. 13.42
  22. 1.848
  23. 0.784
  24. 0.426
  25. 1.76
  26. 0.54
  27. 0.308
  28. 0.858
  29. 0.779
  30. 0.432
  31. 9.84
  32. 24.64
  33. 2.32
  34. 0.936
  35. 6.51
  36. 0.621
  37. 1.458
  38. 0.403
  39. 0.486
  40. 33.93

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