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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 414 · 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. 1.0.02 × 2.1 =
  2. 2.1.2 × 2.8 =
  3. 3.0.57 × 2.5 =
  4. 4.0.41 × 1.4 =
  5. 5.0.02 × 2.2 =
  6. 6.8.1 × 0.35 =
  7. 7.0.13 × 1.9 =
  8. 8.0.12 × 0.8 =
  9. 9.0.77 × 1.3 =
  10. 10.0.3 × 0.36 =
  11. 11.6.6 × 1.7 =
  12. 12.0.98 × 0.5 =
  13. 13.3.3 × 2.5 =
  14. 14.0.94 × 0.4 =
  15. 15.8.5 × 0.33 =
  16. 16.0.35 × 1.4 =
  17. 17.2.5 × 0.25 =
  18. 18.0.92 × 1.2 =
  19. 19.0.56 × 3.1 =
  20. 20.2.1 × 0.11 =
  21. 21.9.9 × 3.2 =
  22. 22.1.2 × 0.22 =
  23. 23.5.6 × 0.11 =
  24. 24.2.3 × 0.19 =
  25. 25.9.3 × 1.7 =
  26. 26.3.5 × 0.27 =
  27. 27.4.9 × 0.7 =
  28. 28.0.19 × 2.4 =
  29. 29.0.77 × 0.8 =
  30. 30.0.02 × 2.6 =
  31. 31.0.14 × 0.4 =
  32. 32.0.06 × 0.4 =
  33. 33.3.4 × 0.13 =
  34. 34.3.4 × 3.3 =
  35. 35.5.9 × 0.9 =
  36. 36.1.4 × 0.19 =
  37. 37.2.9 × 0.8 =
  38. 38.8.8 × 1.1 =
  39. 39.2.7 × 3.7 =
  40. 40.0.42 × 1.4 =

Answer key

  1. 0.042
  2. 3.36
  3. 1.425
  4. 0.574
  5. 0.044
  6. 2.835
  7. 0.247
  8. 0.096
  9. 1.001
  10. 0.108
  11. 11.22
  12. 0.49
  13. 8.25
  14. 0.376
  15. 2.805
  16. 0.49
  17. 0.625
  18. 1.104
  19. 1.736
  20. 0.231
  21. 31.68
  22. 0.264
  23. 0.616
  24. 0.437
  25. 15.81
  26. 0.945
  27. 3.43
  28. 0.456
  29. 0.616
  30. 0.052
  31. 0.056
  32. 0.024
  33. 0.442
  34. 11.22
  35. 5.31
  36. 0.266
  37. 2.32
  38. 9.68
  39. 9.99
  40. 0.588

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