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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 200 · 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. 1.9.1 × 0.12 =
  2. 2.9.6 × 0.21 =
  3. 3.5.5 × 1.4 =
  4. 4.0.57 × 3.8 =
  5. 5.0.06 × 0.2 =
  6. 6.0.2 × 2.1 =
  7. 7.0.81 × 3.6 =
  8. 8.1.2 × 3.3 =
  9. 9.6.2 × 2.5 =
  10. 10.4.2 × 3.4 =
  11. 11.0.71 × 0.3 =
  12. 12.0.59 × 2.1 =
  13. 13.0.09 × 2.8 =
  14. 14.0.58 × 1.5 =
  15. 15.0.14 × 2.3 =
  16. 16.0.41 × 2.1 =
  17. 17.0.07 × 2.7 =
  18. 18.0.2 × 2.6 =
  19. 19.3.4 × 2.4 =
  20. 20.3.8 × 0.02 =
  21. 21.2.2 × 1.4 =
  22. 22.0.83 × 1.5 =
  23. 23.9.3 × 2.6 =
  24. 24.6.2 × 0.17 =
  25. 25.0.11 × 1.8 =
  26. 26.0.91 × 2.9 =
  27. 27.7.9 × 0.26 =
  28. 28.0.73 × 0.5 =
  29. 29.0.11 × 1.2 =
  30. 30.6.6 × 2.4 =
  31. 31.0.85 × 3.1 =
  32. 32.9.9 × 0.27 =
  33. 33.1.4 × 3.4 =
  34. 34.0.8 × 0.3 =
  35. 35.0.97 × 1.3 =
  36. 36.0.92 × 0.6 =
  37. 37.4.2 × 0.21 =
  38. 38.6.6 × 3.4 =
  39. 39.0.06 × 0.9 =
  40. 40.0.05 × 1.4 =

Answer key

  1. 1.092
  2. 2.016
  3. 7.7
  4. 2.166
  5. 0.012
  6. 0.42
  7. 2.916
  8. 3.96
  9. 15.5
  10. 14.28
  11. 0.213
  12. 1.239
  13. 0.252
  14. 0.87
  15. 0.322
  16. 0.861
  17. 0.189
  18. 0.52
  19. 8.16
  20. 0.076
  21. 3.08
  22. 1.245
  23. 24.18
  24. 1.054
  25. 0.198
  26. 2.639
  27. 2.054
  28. 0.365
  29. 0.132
  30. 15.84
  31. 2.635
  32. 2.673
  33. 4.76
  34. 0.24
  35. 1.261
  36. 0.552
  37. 0.882
  38. 22.44
  39. 0.054
  40. 0.07

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