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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 739 · 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. 1.8.3 × 0.17 =
  2. 2.0.59 × 1.3 =
  3. 3.0.41 × 2.1 =
  4. 4.0.31 × 2.1 =
  5. 5.0.36 × 0.4 =
  6. 6.8.9 × 2.4 =
  7. 7.0.4 × 2.6 =
  8. 8.0.12 × 3.8 =
  9. 9.8.4 × 0.18 =
  10. 10.0.05 × 0.6 =
  11. 11.4.5 × 0.6 =
  12. 12.2.7 × 1.4 =
  13. 13.2.3 × 0.31 =
  14. 14.7.7 × 0.9 =
  15. 15.5.8 × 1.1 =
  16. 16.6.2 × 0.7 =
  17. 17.7.5 × 0.17 =
  18. 18.0.33 × 3.9 =
  19. 19.0.47 × 3.2 =
  20. 20.3.3 × 0.02 =
  21. 21.6.2 × 0.9 =
  22. 22.0.58 × 0.6 =
  23. 23.0.07 × 2.1 =
  24. 24.0.35 × 2.3 =
  25. 25.6.6 × 2.6 =
  26. 26.0.32 × 2.1 =
  27. 27.8.1 × 0.2 =
  28. 28.0.8 × 3.3 =
  29. 29.1.1 × 0.06 =
  30. 30.7.8 × 0.16 =
  31. 31.0.71 × 1.1 =
  32. 32.8.1 × 1.4 =
  33. 33.0.63 × 2.5 =
  34. 34.0.4 × 0.21 =
  35. 35.6.2 × 0.02 =
  36. 36.1.6 × 0.38 =
  37. 37.2.9 × 0.4 =
  38. 38.3.9 × 2.7 =
  39. 39.6.7 × 0.31 =
  40. 40.0.97 × 3.3 =

Answer key

  1. 1.411
  2. 0.767
  3. 0.861
  4. 0.651
  5. 0.144
  6. 21.36
  7. 1.04
  8. 0.456
  9. 1.512
  10. 0.03
  11. 2.7
  12. 3.78
  13. 0.713
  14. 6.93
  15. 6.38
  16. 4.34
  17. 1.275
  18. 1.287
  19. 1.504
  20. 0.066
  21. 5.58
  22. 0.348
  23. 0.147
  24. 0.805
  25. 17.16
  26. 0.672
  27. 1.62
  28. 2.64
  29. 0.066
  30. 1.248
  31. 0.781
  32. 11.34
  33. 1.575
  34. 0.084
  35. 0.124
  36. 0.608
  37. 1.16
  38. 10.53
  39. 2.077
  40. 3.201

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