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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 727 · 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. 1.2.4 × 0.06 =
  2. 2.0.04 × 0.4 =
  3. 3.7.8 × 0.26 =
  4. 4.0.4 × 0.39 =
  5. 5.6.7 × 3.7 =
  6. 6.0.89 × 1.6 =
  7. 7.9.2 × 2.9 =
  8. 8.0.18 × 2.9 =
  9. 9.0.36 × 2.1 =
  10. 10.0.37 × 1.1 =
  11. 11.7.8 × 0.4 =
  12. 12.4.9 × 1.1 =
  13. 13.0.15 × 1.3 =
  14. 14.8.9 × 0.7 =
  15. 15.1.3 × 0.32 =
  16. 16.0.4 × 2.1 =
  17. 17.0.11 × 3.9 =
  18. 18.0.43 × 0.7 =
  19. 19.2.8 × 1.7 =
  20. 20.0.32 × 1.2 =
  21. 21.8.3 × 0.06 =
  22. 22.9.5 × 0.7 =
  23. 23.0.19 × 0.2 =
  24. 24.4.1 × 0.7 =
  25. 25.0.68 × 1.6 =
  26. 26.4.1 × 0.13 =
  27. 27.9.8 × 1.9 =
  28. 28.0.75 × 2.8 =
  29. 29.8.3 × 0.6 =
  30. 30.0.62 × 1.1 =
  31. 31.1.2 × 0.11 =
  32. 32.3.1 × 0.21 =
  33. 33.2.5 × 1.8 =
  34. 34.2.7 × 0.3 =
  35. 35.0.57 × 1.2 =
  36. 36.0.23 × 3.4 =
  37. 37.0.95 × 2.6 =
  38. 38.0.13 × 3.5 =
  39. 39.5.4 × 0.16 =
  40. 40.0.51 × 0.3 =

Answer key

  1. 0.144
  2. 0.016
  3. 2.028
  4. 0.156
  5. 24.79
  6. 1.424
  7. 26.68
  8. 0.522
  9. 0.756
  10. 0.407
  11. 3.12
  12. 5.39
  13. 0.195
  14. 6.23
  15. 0.416
  16. 0.84
  17. 0.429
  18. 0.301
  19. 4.76
  20. 0.384
  21. 0.498
  22. 6.65
  23. 0.038
  24. 2.87
  25. 1.088
  26. 0.533
  27. 18.62
  28. 2.1
  29. 4.98
  30. 0.682
  31. 0.132
  32. 0.651
  33. 4.5
  34. 0.81
  35. 0.684
  36. 0.782
  37. 2.47
  38. 0.455
  39. 0.864
  40. 0.153

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