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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 86 · 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. 1.0.92 × 1.8 =
  2. 2.0.31 × 0.4 =
  3. 3.0.73 × 1.4 =
  4. 4.2.5 × 0.35 =
  5. 5.5.5 × 0.11 =
  6. 6.7.8 × 0.05 =
  7. 7.0.2 × 2.1 =
  8. 8.5.6 × 0.06 =
  9. 9.4.4 × 0.12 =
  10. 10.0.02 × 1.2 =
  11. 11.0.77 × 1.7 =
  12. 12.0.96 × 1.2 =
  13. 13.0.11 × 3.6 =
  14. 14.0.22 × 2.1 =
  15. 15.0.99 × 0.4 =
  16. 16.3.7 × 0.08 =
  17. 17.2.3 × 0.3 =
  18. 18.6.3 × 1.3 =
  19. 19.0.82 × 1.2 =
  20. 20.0.06 × 0.8 =
  21. 21.0.65 × 3.9 =
  22. 22.9.1 × 3.1 =
  23. 23.0.08 × 1.7 =
  24. 24.0.09 × 3.1 =
  25. 25.7.9 × 0.8 =
  26. 26.0.31 × 1.7 =
  27. 27.5.9 × 0.31 =
  28. 28.0.43 × 2.6 =
  29. 29.3.6 × 1.3 =
  30. 30.0.11 × 3.7 =
  31. 31.3.1 × 0.04 =
  32. 32.3.1 × 0.31 =
  33. 33.0.54 × 2.9 =
  34. 34.4.1 × 0.22 =
  35. 35.6.6 × 1.9 =
  36. 36.3.1 × 0.19 =
  37. 37.0.55 × 1.6 =
  38. 38.0.3 × 0.02 =
  39. 39.3.4 × 2.8 =
  40. 40.0.31 × 1.1 =

Answer key

  1. 1.656
  2. 0.124
  3. 1.022
  4. 0.875
  5. 0.605
  6. 0.39
  7. 0.42
  8. 0.336
  9. 0.528
  10. 0.024
  11. 1.309
  12. 1.152
  13. 0.396
  14. 0.462
  15. 0.396
  16. 0.296
  17. 0.69
  18. 8.19
  19. 0.984
  20. 0.048
  21. 2.535
  22. 28.21
  23. 0.136
  24. 0.279
  25. 6.32
  26. 0.527
  27. 1.829
  28. 1.118
  29. 4.68
  30. 0.407
  31. 0.124
  32. 0.961
  33. 1.566
  34. 0.902
  35. 12.54
  36. 0.589
  37. 0.88
  38. 0.006
  39. 9.52
  40. 0.341

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