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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 827 · 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. 1.2.7 × 0.28 =
  2. 2.7.7 × 1.1 =
  3. 3.3.3 × 0.31 =
  4. 4.7.4 × 0.12 =
  5. 5.0.66 × 3.8 =
  6. 6.6.8 × 2.4 =
  7. 7.5.7 × 1.4 =
  8. 8.0.2 × 3.3 =
  9. 9.0.21 × 2.1 =
  10. 10.0.59 × 1.2 =
  11. 11.0.53 × 2.3 =
  12. 12.5.1 × 0.24 =
  13. 13.0.4 × 0.15 =
  14. 14.8.9 × 0.11 =
  15. 15.0.78 × 2.2 =
  16. 16.0.06 × 3.7 =
  17. 17.0.05 × 1.5 =
  18. 18.0.5 × 1.1 =
  19. 19.4.1 × 0.37 =
  20. 20.1.9 × 1.1 =
  21. 21.0.79 × 2.6 =
  22. 22.0.9 × 0.03 =
  23. 23.1.9 × 0.11 =
  24. 24.0.81 × 0.9 =
  25. 25.0.91 × 2.4 =
  26. 26.5.1 × 0.29 =
  27. 27.0.62 × 2.3 =
  28. 28.1.2 × 2.1 =
  29. 29.8.3 × 0.16 =
  30. 30.2.5 × 0.02 =
  31. 31.0.68 × 1.4 =
  32. 32.7.7 × 3.2 =
  33. 33.1.8 × 1.5 =
  34. 34.4.1 × 0.6 =
  35. 35.0.9 × 2.1 =
  36. 36.0.89 × 1.7 =
  37. 37.6.1 × 0.24 =
  38. 38.4.1 × 0.31 =
  39. 39.2.2 × 1.6 =
  40. 40.0.34 × 1.2 =

Answer key

  1. 0.756
  2. 8.47
  3. 1.023
  4. 0.888
  5. 2.508
  6. 16.32
  7. 7.98
  8. 0.66
  9. 0.441
  10. 0.708
  11. 1.219
  12. 1.224
  13. 0.06
  14. 0.979
  15. 1.716
  16. 0.222
  17. 0.075
  18. 0.55
  19. 1.517
  20. 2.09
  21. 2.054
  22. 0.027
  23. 0.209
  24. 0.729
  25. 2.184
  26. 1.479
  27. 1.426
  28. 2.52
  29. 1.328
  30. 0.05
  31. 0.952
  32. 24.64
  33. 2.7
  34. 2.46
  35. 1.89
  36. 1.513
  37. 1.464
  38. 1.271
  39. 3.52
  40. 0.408

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