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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 859 · 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. 1.0.02 × 3.6 =
  2. 2.9.5 × 0.32 =
  3. 3.5.8 × 0.19 =
  4. 4.8.9 × 0.32 =
  5. 5.0.43 × 1.2 =
  6. 6.0.08 × 1.2 =
  7. 7.2.9 × 1.1 =
  8. 8.7.2 × 0.13 =
  9. 9.0.3 × 1.1 =
  10. 10.1.4 × 0.38 =
  11. 11.0.75 × 2.9 =
  12. 12.0.05 × 0.2 =
  13. 13.9.5 × 1.9 =
  14. 14.8.2 × 3.3 =
  15. 15.1.1 × 0.6 =
  16. 16.0.08 × 3.6 =
  17. 17.9.1 × 0.13 =
  18. 18.4.1 × 0.22 =
  19. 19.0.22 × 0.3 =
  20. 20.1.6 × 0.23 =
  21. 21.0.47 × 2.5 =
  22. 22.0.55 × 1.3 =
  23. 23.0.09 × 1.1 =
  24. 24.4.1 × 0.08 =
  25. 25.8.5 × 0.11 =
  26. 26.0.14 × 1.6 =
  27. 27.0.49 × 0.9 =
  28. 28.0.6 × 0.04 =
  29. 29.0.24 × 0.4 =
  30. 30.4.6 × 3.2 =
  31. 31.0.86 × 3.5 =
  32. 32.8.3 × 3.1 =
  33. 33.0.74 × 2.1 =
  34. 34.0.91 × 1.1 =
  35. 35.0.86 × 1.7 =
  36. 36.2.1 × 0.4 =
  37. 37.0.22 × 3.3 =
  38. 38.2.5 × 2.5 =
  39. 39.2.6 × 0.39 =
  40. 40.7.1 × 0.08 =

Answer key

  1. 0.072
  2. 3.04
  3. 1.102
  4. 2.848
  5. 0.516
  6. 0.096
  7. 3.19
  8. 0.936
  9. 0.33
  10. 0.532
  11. 2.175
  12. 0.01
  13. 18.05
  14. 27.06
  15. 0.66
  16. 0.288
  17. 1.183
  18. 0.902
  19. 0.066
  20. 0.368
  21. 1.175
  22. 0.715
  23. 0.099
  24. 0.328
  25. 0.935
  26. 0.224
  27. 0.441
  28. 0.024
  29. 0.096
  30. 14.72
  31. 3.01
  32. 25.73
  33. 1.554
  34. 1.001
  35. 1.462
  36. 0.84
  37. 0.726
  38. 6.25
  39. 1.014
  40. 0.568

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