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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 973 · 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 × 0.7 =
  2. 2.0.4 × 3.5 =
  3. 3.0.44 × 3.9 =
  4. 4.0.47 × 1.5 =
  5. 5.0.29 × 1.2 =
  6. 6.0.17 × 0.7 =
  7. 7.0.09 × 3.6 =
  8. 8.4.3 × 0.21 =
  9. 9.7.3 × 0.09 =
  10. 10.0.07 × 3.2 =
  11. 11.0.64 × 2.1 =
  12. 12.0.33 × 0.2 =
  13. 13.0.68 × 1.1 =
  14. 14.0.06 × 0.7 =
  15. 15.1.8 × 0.11 =
  16. 16.0.39 × 0.3 =
  17. 17.0.2 × 3.2 =
  18. 18.0.63 × 1.8 =
  19. 19.9.9 × 0.22 =
  20. 20.5.6 × 0.31 =
  21. 21.9.4 × 0.15 =
  22. 22.1.3 × 0.06 =
  23. 23.0.51 × 0.4 =
  24. 24.0.82 × 1.9 =
  25. 25.3.6 × 0.06 =
  26. 26.0.34 × 3.4 =
  27. 27.2.3 × 0.03 =
  28. 28.0.72 × 1.4 =
  29. 29.0.33 × 2.5 =
  30. 30.0.91 × 0.3 =
  31. 31.9.1 × 0.17 =
  32. 32.8.2 × 0.25 =
  33. 33.0.77 × 2.1 =
  34. 34.1.1 × 0.15 =
  35. 35.0.11 × 3.2 =
  36. 36.0.11 × 2.1 =
  37. 37.1.2 × 0.07 =
  38. 38.3.1 × 0.2 =
  39. 39.0.04 × 1.4 =
  40. 40.2.5 × 0.25 =

Answer key

  1. 0.511
  2. 1.4
  3. 1.716
  4. 0.705
  5. 0.348
  6. 0.119
  7. 0.324
  8. 0.903
  9. 0.657
  10. 0.224
  11. 1.344
  12. 0.066
  13. 0.748
  14. 0.042
  15. 0.198
  16. 0.117
  17. 0.64
  18. 1.134
  19. 2.178
  20. 1.736
  21. 1.41
  22. 0.078
  23. 0.204
  24. 1.558
  25. 0.216
  26. 1.156
  27. 0.069
  28. 1.008
  29. 0.825
  30. 0.273
  31. 1.547
  32. 2.05
  33. 1.617
  34. 0.165
  35. 0.352
  36. 0.231
  37. 0.084
  38. 0.62
  39. 0.056
  40. 0.625

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