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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 247 · 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. 1.1.5 × 1.4 =
  2. 2.0.27 × 0.7 =
  3. 3.6.8 × 0.31 =
  4. 4.0.31 × 1.2 =
  5. 5.0.06 × 2.5 =
  6. 6.0.58 × 0.9 =
  7. 7.3.4 × 0.24 =
  8. 8.0.68 × 3.1 =
  9. 9.0.09 × 2.1 =
  10. 10.0.6 × 0.11 =
  11. 11.1.6 × 0.36 =
  12. 12.4.1 × 1.1 =
  13. 13.0.61 × 2.7 =
  14. 14.0.98 × 0.5 =
  15. 15.8.4 × 0.12 =
  16. 16.7.7 × 0.3 =
  17. 17.1.4 × 0.22 =
  18. 18.2.3 × 2.2 =
  19. 19.2.7 × 3.8 =
  20. 20.7.4 × 0.4 =
  21. 21.2.8 × 0.19 =
  22. 22.5.3 × 3.1 =
  23. 23.4.5 × 0.17 =
  24. 24.2.5 × 0.39 =
  25. 25.0.11 × 3.3 =
  26. 26.0.11 × 3.1 =
  27. 27.0.74 × 3.2 =
  28. 28.0.98 × 0.9 =
  29. 29.8.2 × 0.8 =
  30. 30.0.15 × 2.1 =
  31. 31.9.2 × 0.11 =
  32. 32.0.38 × 1.8 =
  33. 33.0.03 × 2.3 =
  34. 34.3.7 × 0.7 =
  35. 35.5.6 × 0.19 =
  36. 36.7.3 × 0.16 =
  37. 37.4.6 × 0.7 =
  38. 38.6.7 × 0.11 =
  39. 39.0.52 × 3.4 =
  40. 40.1.1 × 0.26 =

Answer key

  1. 2.1
  2. 0.189
  3. 2.108
  4. 0.372
  5. 0.15
  6. 0.522
  7. 0.816
  8. 2.108
  9. 0.189
  10. 0.066
  11. 0.576
  12. 4.51
  13. 1.647
  14. 0.49
  15. 1.008
  16. 2.31
  17. 0.308
  18. 5.06
  19. 10.26
  20. 2.96
  21. 0.532
  22. 16.43
  23. 0.765
  24. 0.975
  25. 0.363
  26. 0.341
  27. 2.368
  28. 0.882
  29. 6.56
  30. 0.315
  31. 1.012
  32. 0.684
  33. 0.069
  34. 2.59
  35. 1.064
  36. 1.168
  37. 3.22
  38. 0.737
  39. 1.768
  40. 0.286

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