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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 27 · 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. 1.0.12 × 3.2 =
  2. 2.0.79 × 3.6 =
  3. 3.0.8 × 0.24 =
  4. 4.0.66 × 0.7 =
  5. 5.6.4 × 0.35 =
  6. 6.0.55 × 1.1 =
  7. 7.0.54 × 3.9 =
  8. 8.7.7 × 0.07 =
  9. 9.5.3 × 0.15 =
  10. 10.3.2 × 0.02 =
  11. 11.0.88 × 2.4 =
  12. 12.3.9 × 0.11 =
  13. 13.0.32 × 2.9 =
  14. 14.0.17 × 2.1 =
  15. 15.9.6 × 3.1 =
  16. 16.0.63 × 1.1 =
  17. 17.5.9 × 3.9 =
  18. 18.4.3 × 3.5 =
  19. 19.7.8 × 0.33 =
  20. 20.2.1 × 0.11 =
  21. 21.7.7 × 0.08 =
  22. 22.3.3 × 1.1 =
  23. 23.0.23 × 0.2 =
  24. 24.0.47 × 3.8 =
  25. 25.0.09 × 0.9 =
  26. 26.0.45 × 2.4 =
  27. 27.1.3 × 0.26 =
  28. 28.0.61 × 3.9 =
  29. 29.0.04 × 1.8 =
  30. 30.1.8 × 0.06 =
  31. 31.0.29 × 1.4 =
  32. 32.0.26 × 0.8 =
  33. 33.3.1 × 3.4 =
  34. 34.8.6 × 0.22 =
  35. 35.0.44 × 1.8 =
  36. 36.2.1 × 0.37 =
  37. 37.0.24 × 1.1 =
  38. 38.0.05 × 0.5 =
  39. 39.5.3 × 0.6 =
  40. 40.8.4 × 1.3 =

Answer key

  1. 0.384
  2. 2.844
  3. 0.192
  4. 0.462
  5. 2.24
  6. 0.605
  7. 2.106
  8. 0.539
  9. 0.795
  10. 0.064
  11. 2.112
  12. 0.429
  13. 0.928
  14. 0.357
  15. 29.76
  16. 0.693
  17. 23.01
  18. 15.05
  19. 2.574
  20. 0.231
  21. 0.616
  22. 3.63
  23. 0.046
  24. 1.786
  25. 0.081
  26. 1.08
  27. 0.338
  28. 2.379
  29. 0.072
  30. 0.108
  31. 0.406
  32. 0.208
  33. 10.54
  34. 1.892
  35. 0.792
  36. 0.777
  37. 0.264
  38. 0.025
  39. 3.18
  40. 10.92

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