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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 389 · 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. 1.9.2 × 0.09 =
  2. 2.0.64 × 2.7 =
  3. 3.4.2 × 0.7 =
  4. 4.0.31 × 1.2 =
  5. 5.0.37 × 0.4 =
  6. 6.8.7 × 2.6 =
  7. 7.4.2 × 0.7 =
  8. 8.4.8 × 3.4 =
  9. 9.1.8 × 3.7 =
  10. 10.0.07 × 2.1 =
  11. 11.0.64 × 0.3 =
  12. 12.0.15 × 3.2 =
  13. 13.0.36 × 0.8 =
  14. 14.0.55 × 3.6 =
  15. 15.8.5 × 3.1 =
  16. 16.0.4 × 0.31 =
  17. 17.6.5 × 1.3 =
  18. 18.0.81 × 0.9 =
  19. 19.0.17 × 0.2 =
  20. 20.0.04 × 1.5 =
  21. 21.9.1 × 0.5 =
  22. 22.0.54 × 0.2 =
  23. 23.3.1 × 0.06 =
  24. 24.0.48 × 2.6 =
  25. 25.0.29 × 2.6 =
  26. 26.0.68 × 1.6 =
  27. 27.9.2 × 1.3 =
  28. 28.9.7 × 2.5 =
  29. 29.0.39 × 0.2 =
  30. 30.0.49 × 3.7 =
  31. 31.5.6 × 1.8 =
  32. 32.9.9 × 3.8 =
  33. 33.0.43 × 1.1 =
  34. 34.3.5 × 0.24 =
  35. 35.0.98 × 1.9 =
  36. 36.7.4 × 0.04 =
  37. 37.0.73 × 1.2 =
  38. 38.3.1 × 0.21 =
  39. 39.0.46 × 2.6 =
  40. 40.0.65 × 2.1 =

Answer key

  1. 0.828
  2. 1.728
  3. 2.94
  4. 0.372
  5. 0.148
  6. 22.62
  7. 2.94
  8. 16.32
  9. 6.66
  10. 0.147
  11. 0.192
  12. 0.48
  13. 0.288
  14. 1.98
  15. 26.35
  16. 0.124
  17. 8.45
  18. 0.729
  19. 0.034
  20. 0.06
  21. 4.55
  22. 0.108
  23. 0.186
  24. 1.248
  25. 0.754
  26. 1.088
  27. 11.96
  28. 24.25
  29. 0.078
  30. 1.813
  31. 10.08
  32. 37.62
  33. 0.473
  34. 0.84
  35. 1.862
  36. 0.296
  37. 0.876
  38. 0.651
  39. 1.196
  40. 1.365

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