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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 463 · 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. 1.0.51 × 2.4 =
  2. 2.7.7 × 1.7 =
  3. 3.4.6 × 0.6 =
  4. 4.0.67 × 2.1 =
  5. 5.5.2 × 2.6 =
  6. 6.5.7 × 0.03 =
  7. 7.3.5 × 1.9 =
  8. 8.2.1 × 0.32 =
  9. 9.0.86 × 2.2 =
  10. 10.8.1 × 0.22 =
  11. 11.3.1 × 0.04 =
  12. 12.2.3 × 0.21 =
  13. 13.0.64 × 1.1 =
  14. 14.0.79 × 0.8 =
  15. 15.0.09 × 2.1 =
  16. 16.7.1 × 1.1 =
  17. 17.0.13 × 1.9 =
  18. 18.1.5 × 1.6 =
  19. 19.0.22 × 1.9 =
  20. 20.6.8 × 0.11 =
  21. 21.0.65 × 2.6 =
  22. 22.9.5 × 0.2 =
  23. 23.0.9 × 0.31 =
  24. 24.0.21 × 3.4 =
  25. 25.0.93 × 3.5 =
  26. 26.0.41 × 2.6 =
  27. 27.1.8 × 1.1 =
  28. 28.8.8 × 2.2 =
  29. 29.0.66 × 1.6 =
  30. 30.0.67 × 1.6 =
  31. 31.0.38 × 3.1 =
  32. 32.0.3 × 0.39 =
  33. 33.0.9 × 0.04 =
  34. 34.9.7 × 3.1 =
  35. 35.0.28 × 0.5 =
  36. 36.7.1 × 1.4 =
  37. 37.9.1 × 0.35 =
  38. 38.0.46 × 2.1 =
  39. 39.0.67 × 3.4 =
  40. 40.2.6 × 1.5 =

Answer key

  1. 1.224
  2. 13.09
  3. 2.76
  4. 1.407
  5. 13.52
  6. 0.171
  7. 6.65
  8. 0.672
  9. 1.892
  10. 1.782
  11. 0.124
  12. 0.483
  13. 0.704
  14. 0.632
  15. 0.189
  16. 7.81
  17. 0.247
  18. 2.4
  19. 0.418
  20. 0.748
  21. 1.69
  22. 1.9
  23. 0.279
  24. 0.714
  25. 3.255
  26. 1.066
  27. 1.98
  28. 19.36
  29. 1.056
  30. 1.072
  31. 1.178
  32. 0.117
  33. 0.036
  34. 30.07
  35. 0.14
  36. 9.94
  37. 3.185
  38. 0.966
  39. 2.278
  40. 3.9

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