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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 708 · 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. 1.0.05 × 3.2 =
  2. 2.2.2 × 1.7 =
  3. 3.0.7 × 3.2 =
  4. 4.0.41 × 2.6 =
  5. 5.0.47 × 3.9 =
  6. 6.7.3 × 0.04 =
  7. 7.0.95 × 0.5 =
  8. 8.0.11 × 3.7 =
  9. 9.2.4 × 0.06 =
  10. 10.7.1 × 0.24 =
  11. 11.0.22 × 1.4 =
  12. 12.8.3 × 2.7 =
  13. 13.2.7 × 2.2 =
  14. 14.0.68 × 3.5 =
  15. 15.1.6 × 0.14 =
  16. 16.2.2 × 0.2 =
  17. 17.0.78 × 2.4 =
  18. 18.6.3 × 3.3 =
  19. 19.8.5 × 0.05 =
  20. 20.9.4 × 1.1 =
  21. 21.0.85 × 2.9 =
  22. 22.2.1 × 3.3 =
  23. 23.0.45 × 0.7 =
  24. 24.2.1 × 0.8 =
  25. 25.1.1 × 0.38 =
  26. 26.2.5 × 3.2 =
  27. 27.0.82 × 0.6 =
  28. 28.0.6 × 1.9 =
  29. 29.0.96 × 0.8 =
  30. 30.8.9 × 0.06 =
  31. 31.0.39 × 2.4 =
  32. 32.3.6 × 2.9 =
  33. 33.0.29 × 3.1 =
  34. 34.2.5 × 0.31 =
  35. 35.1.5 × 0.05 =
  36. 36.0.19 × 1.2 =
  37. 37.0.64 × 3.6 =
  38. 38.6.7 × 0.11 =
  39. 39.0.65 × 2.3 =
  40. 40.8.3 × 0.26 =

Answer key

  1. 0.16
  2. 3.74
  3. 2.24
  4. 1.066
  5. 1.833
  6. 0.292
  7. 0.475
  8. 0.407
  9. 0.144
  10. 1.704
  11. 0.308
  12. 22.41
  13. 5.94
  14. 2.38
  15. 0.224
  16. 0.44
  17. 1.872
  18. 20.79
  19. 0.425
  20. 10.34
  21. 2.465
  22. 6.93
  23. 0.315
  24. 1.68
  25. 0.418
  26. 8
  27. 0.492
  28. 1.14
  29. 0.768
  30. 0.534
  31. 0.936
  32. 10.44
  33. 0.899
  34. 0.775
  35. 0.075
  36. 0.228
  37. 2.304
  38. 0.737
  39. 1.495
  40. 2.158

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