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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 662 · 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. 1.0.15 × 3.1 =
  2. 2.3.7 × 2.3 =
  3. 3.0.59 × 3.5 =
  4. 4.3.9 × 0.35 =
  5. 5.0.94 × 3.1 =
  6. 6.0.63 × 1.7 =
  7. 7.2.4 × 2.5 =
  8. 8.0.87 × 0.8 =
  9. 9.0.42 × 2.3 =
  10. 10.0.66 × 2.6 =
  11. 11.0.43 × 0.5 =
  12. 12.4.7 × 0.15 =
  13. 13.7.3 × 0.9 =
  14. 14.0.6 × 0.28 =
  15. 15.7.8 × 0.33 =
  16. 16.0.82 × 3.1 =
  17. 17.0.49 × 1.9 =
  18. 18.7.7 × 1.6 =
  19. 19.0.77 × 3.2 =
  20. 20.5.2 × 0.13 =
  21. 21.2.3 × 2.3 =
  22. 22.7.7 × 2.5 =
  23. 23.0.34 × 2.6 =
  24. 24.0.95 × 1.2 =
  25. 25.0.94 × 3.1 =
  26. 26.5.5 × 1.8 =
  27. 27.1.5 × 0.35 =
  28. 28.2.9 × 0.6 =
  29. 29.0.8 × 0.16 =
  30. 30.0.15 × 1.4 =
  31. 31.0.75 × 0.8 =
  32. 32.0.89 × 2.5 =
  33. 33.5.1 × 3.8 =
  34. 34.6.3 × 3.8 =
  35. 35.1.1 × 0.07 =
  36. 36.0.95 × 0.4 =
  37. 37.6.6 × 2.1 =
  38. 38.0.55 × 3.3 =
  39. 39.0.9 × 0.34 =
  40. 40.0.96 × 2.1 =

Answer key

  1. 0.465
  2. 8.51
  3. 2.065
  4. 1.365
  5. 2.914
  6. 1.071
  7. 6
  8. 0.696
  9. 0.966
  10. 1.716
  11. 0.215
  12. 0.705
  13. 6.57
  14. 0.168
  15. 2.574
  16. 2.542
  17. 0.931
  18. 12.32
  19. 2.464
  20. 0.676
  21. 5.29
  22. 19.25
  23. 0.884
  24. 1.14
  25. 2.914
  26. 9.9
  27. 0.525
  28. 1.74
  29. 0.128
  30. 0.21
  31. 0.6
  32. 2.225
  33. 19.38
  34. 23.94
  35. 0.077
  36. 0.38
  37. 13.86
  38. 1.815
  39. 0.306
  40. 2.016

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