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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 996 · 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. 1.2.3 × 2.8 =
  2. 2.0.58 × 2.5 =
  3. 3.2.5 × 3.1 =
  4. 4.3.2 × 0.4 =
  5. 5.0.27 × 0.4 =
  6. 6.6.8 × 0.05 =
  7. 7.3.1 × 0.31 =
  8. 8.6.5 × 0.31 =
  9. 9.0.35 × 0.6 =
  10. 10.0.17 × 1.7 =
  11. 11.9.8 × 3.4 =
  12. 12.1.6 × 0.05 =
  13. 13.0.32 × 3.5 =
  14. 14.7.8 × 0.17 =
  15. 15.9.2 × 2.3 =
  16. 16.0.58 × 2.7 =
  17. 17.0.94 × 1.1 =
  18. 18.0.73 × 0.7 =
  19. 19.1.2 × 0.07 =
  20. 20.8.6 × 0.11 =
  21. 21.0.59 × 2.7 =
  22. 22.0.31 × 1.9 =
  23. 23.0.05 × 0.3 =
  24. 24.2.7 × 2.8 =
  25. 25.0.12 × 3.4 =
  26. 26.4.5 × 0.26 =
  27. 27.5.7 × 0.38 =
  28. 28.2.5 × 0.3 =
  29. 29.0.38 × 3.1 =
  30. 30.0.36 × 2.8 =
  31. 31.0.61 × 3.1 =
  32. 32.0.65 × 1.9 =
  33. 33.0.5 × 2.4 =
  34. 34.0.54 × 0.2 =
  35. 35.0.72 × 0.9 =
  36. 36.3.8 × 3.2 =
  37. 37.0.43 × 2.1 =
  38. 38.0.51 × 3.4 =
  39. 39.0.79 × 2.4 =
  40. 40.6.6 × 0.21 =

Answer key

  1. 6.44
  2. 1.45
  3. 7.75
  4. 1.28
  5. 0.108
  6. 0.34
  7. 0.961
  8. 2.015
  9. 0.21
  10. 0.289
  11. 33.32
  12. 0.08
  13. 1.12
  14. 1.326
  15. 21.16
  16. 1.566
  17. 1.034
  18. 0.511
  19. 0.084
  20. 0.946
  21. 1.593
  22. 0.589
  23. 0.015
  24. 7.56
  25. 0.408
  26. 1.17
  27. 2.166
  28. 0.75
  29. 1.178
  30. 1.008
  31. 1.891
  32. 1.235
  33. 1.2
  34. 0.108
  35. 0.648
  36. 12.16
  37. 0.903
  38. 1.734
  39. 1.896
  40. 1.386

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