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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 242 · 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. 1.0.73 × 2.5 =
  2. 2.3.5 × 3.6 =
  3. 3.0.52 × 2.7 =
  4. 4.2.3 × 0.32 =
  5. 5.0.15 × 0.3 =
  6. 6.0.7 × 3.2 =
  7. 7.0.07 × 3.6 =
  8. 8.2.4 × 0.12 =
  9. 9.0.21 × 3.4 =
  10. 10.0.02 × 3.8 =
  11. 11.0.62 × 2.6 =
  12. 12.0.9 × 3.7 =
  13. 13.5.1 × 0.5 =
  14. 14.0.75 × 0.9 =
  15. 15.0.13 × 3.3 =
  16. 16.6.1 × 3.4 =
  17. 17.5.7 × 2.5 =
  18. 18.3.4 × 0.38 =
  19. 19.8.1 × 2.5 =
  20. 20.2.1 × 0.25 =
  21. 21.0.91 × 1.6 =
  22. 22.0.18 × 3.6 =
  23. 23.5.5 × 3.1 =
  24. 24.0.05 × 3.1 =
  25. 25.4.1 × 0.3 =
  26. 26.0.94 × 3.5 =
  27. 27.0.83 × 1.1 =
  28. 28.8.5 × 0.05 =
  29. 29.1.4 × 2.6 =
  30. 30.0.49 × 3.5 =
  31. 31.0.95 × 0.4 =
  32. 32.3.3 × 3.6 =
  33. 33.0.68 × 2.5 =
  34. 34.5.1 × 1.6 =
  35. 35.8.3 × 0.34 =
  36. 36.0.31 × 1.1 =
  37. 37.0.14 × 2.1 =
  38. 38.2.8 × 0.7 =
  39. 39.0.63 × 1.8 =
  40. 40.0.39 × 1.5 =

Answer key

  1. 1.825
  2. 12.6
  3. 1.404
  4. 0.736
  5. 0.045
  6. 2.24
  7. 0.252
  8. 0.288
  9. 0.714
  10. 0.076
  11. 1.612
  12. 3.33
  13. 2.55
  14. 0.675
  15. 0.429
  16. 20.74
  17. 14.25
  18. 1.292
  19. 20.25
  20. 0.525
  21. 1.456
  22. 0.648
  23. 17.05
  24. 0.155
  25. 1.23
  26. 3.29
  27. 0.913
  28. 0.425
  29. 3.64
  30. 1.715
  31. 0.38
  32. 11.88
  33. 1.7
  34. 8.16
  35. 2.822
  36. 0.341
  37. 0.294
  38. 1.96
  39. 1.134
  40. 0.585

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