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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 412 · 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. 1.0.49 × 2.8 =
  2. 2.9.9 × 0.32 =
  3. 3.0.55 × 1.1 =
  4. 4.2.1 × 0.5 =
  5. 5.0.69 × 0.3 =
  6. 6.0.64 × 3.9 =
  7. 7.0.91 × 2.9 =
  8. 8.0.02 × 1.2 =
  9. 9.0.82 × 1.6 =
  10. 10.1.9 × 0.38 =
  11. 11.3.7 × 0.04 =
  12. 12.7.9 × 2.7 =
  13. 13.0.81 × 2.1 =
  14. 14.0.61 × 1.1 =
  15. 15.8.7 × 0.3 =
  16. 16.0.18 × 0.9 =
  17. 17.4.1 × 2.1 =
  18. 18.0.9 × 0.34 =
  19. 19.0.32 × 3.8 =
  20. 20.9.1 × 0.03 =
  21. 21.0.03 × 3.1 =
  22. 22.6.3 × 2.4 =
  23. 23.0.06 × 0.5 =
  24. 24.0.54 × 0.3 =
  25. 25.0.82 × 2.4 =
  26. 26.3.5 × 0.6 =
  27. 27.0.44 × 1.7 =
  28. 28.0.46 × 3.1 =
  29. 29.0.14 × 2.1 =
  30. 30.8.1 × 0.15 =
  31. 31.4.6 × 0.02 =
  32. 32.2.1 × 3.6 =
  33. 33.0.41 × 3.6 =
  34. 34.0.93 × 2.6 =
  35. 35.0.73 × 1.9 =
  36. 36.0.16 × 1.1 =
  37. 37.5.4 × 3.8 =
  38. 38.0.61 × 2.9 =
  39. 39.0.14 × 0.7 =
  40. 40.0.06 × 2.6 =

Answer key

  1. 1.372
  2. 3.168
  3. 0.605
  4. 1.05
  5. 0.207
  6. 2.496
  7. 2.639
  8. 0.024
  9. 1.312
  10. 0.722
  11. 0.148
  12. 21.33
  13. 1.701
  14. 0.671
  15. 2.61
  16. 0.162
  17. 8.61
  18. 0.306
  19. 1.216
  20. 0.273
  21. 0.093
  22. 15.12
  23. 0.03
  24. 0.162
  25. 1.968
  26. 2.1
  27. 0.748
  28. 1.426
  29. 0.294
  30. 1.215
  31. 0.092
  32. 7.56
  33. 1.476
  34. 2.418
  35. 1.387
  36. 0.176
  37. 20.52
  38. 1.769
  39. 0.098
  40. 0.156

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