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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 66 · 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. 1.0.07 × 3.1 =
  2. 2.0.29 × 1.8 =
  3. 3.0.92 × 0.7 =
  4. 4.8.1 × 1.4 =
  5. 5.0.28 × 0.6 =
  6. 6.0.6 × 0.14 =
  7. 7.0.51 × 0.8 =
  8. 8.9.3 × 0.04 =
  9. 9.0.02 × 3.7 =
  10. 10.0.74 × 0.9 =
  11. 11.0.9 × 0.35 =
  12. 12.0.41 × 3.4 =
  13. 13.0.85 × 1.3 =
  14. 14.1.6 × 0.02 =
  15. 15.4.7 × 0.21 =
  16. 16.6.1 × 0.04 =
  17. 17.5.5 × 0.31 =
  18. 18.2.5 × 3.3 =
  19. 19.0.11 × 1.6 =
  20. 20.0.97 × 3.7 =
  21. 21.0.65 × 2.1 =
  22. 22.3.1 × 0.5 =
  23. 23.9.9 × 1.7 =
  24. 24.1.9 × 0.4 =
  25. 25.6.6 × 2.4 =
  26. 26.2.2 × 0.2 =
  27. 27.0.42 × 1.9 =
  28. 28.3.9 × 0.14 =
  29. 29.0.19 × 3.1 =
  30. 30.0.49 × 3.3 =
  31. 31.6.5 × 0.9 =
  32. 32.0.47 × 0.8 =
  33. 33.0.51 × 1.7 =
  34. 34.6.3 × 0.07 =
  35. 35.6.2 × 0.03 =
  36. 36.0.14 × 3.1 =
  37. 37.8.4 × 0.12 =
  38. 38.0.59 × 2.5 =
  39. 39.9.5 × 2.3 =
  40. 40.0.89 × 2.3 =

Answer key

  1. 0.217
  2. 0.522
  3. 0.644
  4. 11.34
  5. 0.168
  6. 0.084
  7. 0.408
  8. 0.372
  9. 0.074
  10. 0.666
  11. 0.315
  12. 1.394
  13. 1.105
  14. 0.032
  15. 0.987
  16. 0.244
  17. 1.705
  18. 8.25
  19. 0.176
  20. 3.589
  21. 1.365
  22. 1.55
  23. 16.83
  24. 0.76
  25. 15.84
  26. 0.44
  27. 0.798
  28. 0.546
  29. 0.589
  30. 1.617
  31. 5.85
  32. 0.376
  33. 0.867
  34. 0.441
  35. 0.186
  36. 0.434
  37. 1.008
  38. 1.475
  39. 21.85
  40. 2.047

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