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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 596 · 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. 1.8.4 × 0.17 =
  2. 2.4.7 × 0.31 =
  3. 3.0.7 × 0.32 =
  4. 4.0.35 × 2.2 =
  5. 5.0.66 × 3.9 =
  6. 6.4.4 × 0.11 =
  7. 7.5.1 × 2.3 =
  8. 8.1.1 × 0.4 =
  9. 9.0.63 × 0.3 =
  10. 10.7.7 × 0.35 =
  11. 11.8.2 × 3.8 =
  12. 12.0.71 × 3.7 =
  13. 13.9.9 × 2.1 =
  14. 14.3.7 × 2.1 =
  15. 15.2.8 × 3.1 =
  16. 16.3.5 × 0.08 =
  17. 17.0.59 × 2.4 =
  18. 18.0.29 × 3.2 =
  19. 19.1.4 × 0.07 =
  20. 20.0.08 × 2.6 =
  21. 21.0.22 × 1.5 =
  22. 22.0.08 × 0.5 =
  23. 23.9.9 × 3.1 =
  24. 24.8.8 × 0.5 =
  25. 25.5.1 × 3.1 =
  26. 26.7.5 × 2.9 =
  27. 27.9.2 × 2.9 =
  28. 28.6.7 × 0.18 =
  29. 29.0.47 × 2.3 =
  30. 30.0.85 × 2.9 =
  31. 31.0.27 × 1.7 =
  32. 32.0.11 × 0.8 =
  33. 33.0.96 × 1.2 =
  34. 34.7.8 × 0.24 =
  35. 35.4.3 × 0.9 =
  36. 36.9.6 × 0.06 =
  37. 37.1.2 × 0.5 =
  38. 38.0.15 × 1.8 =
  39. 39.5.1 × 0.2 =
  40. 40.1.4 × 0.28 =

Answer key

  1. 1.428
  2. 1.457
  3. 0.224
  4. 0.77
  5. 2.574
  6. 0.484
  7. 11.73
  8. 0.44
  9. 0.189
  10. 2.695
  11. 31.16
  12. 2.627
  13. 20.79
  14. 7.77
  15. 8.68
  16. 0.28
  17. 1.416
  18. 0.928
  19. 0.098
  20. 0.208
  21. 0.33
  22. 0.04
  23. 30.69
  24. 4.4
  25. 15.81
  26. 21.75
  27. 26.68
  28. 1.206
  29. 1.081
  30. 2.465
  31. 0.459
  32. 0.088
  33. 1.152
  34. 1.872
  35. 3.87
  36. 0.576
  37. 0.6
  38. 0.27
  39. 1.02
  40. 0.392

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