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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 93 · 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. 1.0.97 × 0.5 =
  2. 2.6.1 × 3.2 =
  3. 3.7.9 × 1.1 =
  4. 4.0.91 × 3.5 =
  5. 5.1.3 × 0.19 =
  6. 6.0.41 × 1.1 =
  7. 7.2.7 × 3.7 =
  8. 8.4.7 × 0.14 =
  9. 9.0.63 × 1.6 =
  10. 10.3.9 × 3.8 =
  11. 11.7.5 × 0.06 =
  12. 12.8.6 × 3.3 =
  13. 13.8.3 × 1.5 =
  14. 14.0.09 × 0.6 =
  15. 15.9.9 × 0.39 =
  16. 16.2.9 × 0.35 =
  17. 17.5.4 × 3.5 =
  18. 18.0.38 × 2.5 =
  19. 19.0.3 × 3.1 =
  20. 20.0.28 × 3.6 =
  21. 21.0.32 × 1.2 =
  22. 22.4.7 × 0.14 =
  23. 23.0.02 × 1.7 =
  24. 24.7.1 × 3.4 =
  25. 25.6.2 × 0.7 =
  26. 26.9.1 × 0.37 =
  27. 27.2.6 × 3.5 =
  28. 28.6.1 × 0.32 =
  29. 29.1.6 × 3.4 =
  30. 30.0.71 × 2.8 =
  31. 31.3.9 × 0.11 =
  32. 32.3.4 × 0.14 =
  33. 33.0.7 × 0.22 =
  34. 34.8.1 × 0.03 =
  35. 35.0.91 × 1.9 =
  36. 36.0.74 × 0.6 =
  37. 37.9.1 × 3.8 =
  38. 38.0.67 × 1.1 =
  39. 39.0.24 × 0.9 =
  40. 40.0.28 × 1.3 =

Answer key

  1. 0.485
  2. 19.52
  3. 8.69
  4. 3.185
  5. 0.247
  6. 0.451
  7. 9.99
  8. 0.658
  9. 1.008
  10. 14.82
  11. 0.45
  12. 28.38
  13. 12.45
  14. 0.054
  15. 3.861
  16. 1.015
  17. 18.9
  18. 0.95
  19. 0.93
  20. 1.008
  21. 0.384
  22. 0.658
  23. 0.034
  24. 24.14
  25. 4.34
  26. 3.367
  27. 9.1
  28. 1.952
  29. 5.44
  30. 1.988
  31. 0.429
  32. 0.476
  33. 0.154
  34. 0.243
  35. 1.729
  36. 0.444
  37. 34.58
  38. 0.737
  39. 0.216
  40. 0.364

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