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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 260 · 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. 1.1.7 × 0.17 =
  2. 2.0.41 × 1.1 =
  3. 3.1.4 × 0.13 =
  4. 4.0.79 × 0.4 =
  5. 5.0.21 × 1.5 =
  6. 6.9.1 × 3.9 =
  7. 7.0.21 × 1.1 =
  8. 8.0.75 × 3.1 =
  9. 9.0.71 × 2.5 =
  10. 10.1.9 × 3.7 =
  11. 11.0.65 × 3.1 =
  12. 12.0.94 × 1.1 =
  13. 13.0.35 × 0.6 =
  14. 14.0.59 × 1.1 =
  15. 15.0.8 × 0.4 =
  16. 16.4.3 × 0.12 =
  17. 17.0.71 × 3.7 =
  18. 18.0.11 × 0.5 =
  19. 19.0.96 × 0.4 =
  20. 20.7.7 × 3.6 =
  21. 21.0.99 × 3.9 =
  22. 22.0.17 × 1.9 =
  23. 23.8.3 × 0.5 =
  24. 24.0.79 × 3.6 =
  25. 25.1.4 × 3.9 =
  26. 26.0.67 × 3.4 =
  27. 27.0.81 × 3.1 =
  28. 28.0.26 × 2.8 =
  29. 29.8.4 × 0.27 =
  30. 30.0.52 × 3.9 =
  31. 31.9.2 × 0.12 =
  32. 32.0.63 × 0.4 =
  33. 33.1.4 × 0.08 =
  34. 34.4.1 × 3.4 =
  35. 35.0.47 × 3.5 =
  36. 36.0.57 × 3.3 =
  37. 37.0.24 × 3.3 =
  38. 38.0.82 × 1.8 =
  39. 39.9.2 × 0.9 =
  40. 40.8.7 × 0.5 =

Answer key

  1. 0.289
  2. 0.451
  3. 0.182
  4. 0.316
  5. 0.315
  6. 35.49
  7. 0.231
  8. 2.325
  9. 1.775
  10. 7.03
  11. 2.015
  12. 1.034
  13. 0.21
  14. 0.649
  15. 0.32
  16. 0.516
  17. 2.627
  18. 0.055
  19. 0.384
  20. 27.72
  21. 3.861
  22. 0.323
  23. 4.15
  24. 2.844
  25. 5.46
  26. 2.278
  27. 2.511
  28. 0.728
  29. 2.268
  30. 2.028
  31. 1.104
  32. 0.252
  33. 0.112
  34. 13.94
  35. 1.645
  36. 1.881
  37. 0.792
  38. 1.476
  39. 8.28
  40. 4.35

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