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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 576 · 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. 1.0.15 × 1.1 =
  2. 2.0.23 × 2.3 =
  3. 3.8.1 × 3.1 =
  4. 4.0.29 × 0.3 =
  5. 5.9.1 × 0.21 =
  6. 6.1.5 × 0.35 =
  7. 7.0.71 × 1.9 =
  8. 8.0.16 × 0.6 =
  9. 9.1.1 × 1.2 =
  10. 10.0.38 × 3.1 =
  11. 11.0.73 × 1.7 =
  12. 12.0.81 × 0.5 =
  13. 13.8.1 × 0.28 =
  14. 14.0.59 × 2.7 =
  15. 15.0.05 × 0.9 =
  16. 16.6.8 × 3.4 =
  17. 17.0.63 × 0.2 =
  18. 18.3.3 × 0.11 =
  19. 19.0.68 × 3.5 =
  20. 20.4.1 × 0.6 =
  21. 21.0.27 × 2.7 =
  22. 22.0.45 × 0.5 =
  23. 23.4.8 × 2.7 =
  24. 24.5.7 × 3.5 =
  25. 25.0.84 × 3.3 =
  26. 26.0.81 × 3.1 =
  27. 27.0.51 × 2.5 =
  28. 28.0.31 × 1.5 =
  29. 29.0.25 × 0.8 =
  30. 30.0.97 × 0.3 =
  31. 31.0.35 × 2.1 =
  32. 32.2.4 × 0.18 =
  33. 33.0.85 × 1.1 =
  34. 34.0.99 × 2.4 =
  35. 35.0.56 × 1.5 =
  36. 36.0.82 × 2.7 =
  37. 37.5.5 × 2.1 =
  38. 38.0.18 × 0.7 =
  39. 39.1.6 × 0.31 =
  40. 40.0.06 × 2.7 =

Answer key

  1. 0.165
  2. 0.529
  3. 25.11
  4. 0.087
  5. 1.911
  6. 0.525
  7. 1.349
  8. 0.096
  9. 1.32
  10. 1.178
  11. 1.241
  12. 0.405
  13. 2.268
  14. 1.593
  15. 0.045
  16. 23.12
  17. 0.126
  18. 0.363
  19. 2.38
  20. 2.46
  21. 0.729
  22. 0.225
  23. 12.96
  24. 19.95
  25. 2.772
  26. 2.511
  27. 1.275
  28. 0.465
  29. 0.2
  30. 0.291
  31. 0.735
  32. 0.432
  33. 0.935
  34. 2.376
  35. 0.84
  36. 2.214
  37. 11.55
  38. 0.126
  39. 0.496
  40. 0.162

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