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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 900 · 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. 1.3.3 × 0.37 =
  2. 2.8.9 × 0.5 =
  3. 3.0.9 × 3.3 =
  4. 4.6.3 × 1.1 =
  5. 5.9.9 × 0.11 =
  6. 6.5.2 × 0.11 =
  7. 7.0.26 × 1.2 =
  8. 8.0.37 × 3.8 =
  9. 9.0.13 × 2.7 =
  10. 10.0.48 × 3.5 =
  11. 11.0.82 × 0.4 =
  12. 12.8.9 × 0.02 =
  13. 13.2.1 × 0.9 =
  14. 14.8.2 × 0.25 =
  15. 15.2.4 × 3.6 =
  16. 16.1.9 × 0.9 =
  17. 17.0.61 × 1.5 =
  18. 18.0.74 × 0.6 =
  19. 19.0.49 × 0.2 =
  20. 20.2.9 × 0.22 =
  21. 21.1.3 × 2.4 =
  22. 22.0.27 × 0.3 =
  23. 23.2.4 × 0.02 =
  24. 24.0.55 × 0.2 =
  25. 25.0.43 × 0.4 =
  26. 26.0.23 × 0.8 =
  27. 27.0.11 × 2.1 =
  28. 28.0.24 × 2.7 =
  29. 29.8.4 × 0.04 =
  30. 30.2.5 × 2.2 =
  31. 31.0.52 × 1.7 =
  32. 32.0.14 × 1.2 =
  33. 33.0.18 × 3.9 =
  34. 34.0.09 × 2.2 =
  35. 35.0.99 × 3.5 =
  36. 36.0.82 × 2.1 =
  37. 37.0.77 × 1.3 =
  38. 38.5.1 × 1.1 =
  39. 39.0.86 × 1.2 =
  40. 40.0.41 × 0.7 =

Answer key

  1. 1.221
  2. 4.45
  3. 2.97
  4. 6.93
  5. 1.089
  6. 0.572
  7. 0.312
  8. 1.406
  9. 0.351
  10. 1.68
  11. 0.328
  12. 0.178
  13. 1.89
  14. 2.05
  15. 8.64
  16. 1.71
  17. 0.915
  18. 0.444
  19. 0.098
  20. 0.638
  21. 3.12
  22. 0.081
  23. 0.048
  24. 0.11
  25. 0.172
  26. 0.184
  27. 0.231
  28. 0.648
  29. 0.336
  30. 5.5
  31. 0.884
  32. 0.168
  33. 0.702
  34. 0.198
  35. 3.465
  36. 1.722
  37. 1.001
  38. 5.61
  39. 1.032
  40. 0.287

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