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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 416 · 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. 1.9.9 × 0.7 =
  2. 2.1.8 × 1.9 =
  3. 3.0.88 × 2.1 =
  4. 4.0.23 × 3.4 =
  5. 5.0.31 × 1.9 =
  6. 6.0.35 × 0.6 =
  7. 7.9.7 × 3.1 =
  8. 8.1.8 × 0.6 =
  9. 9.0.98 × 3.8 =
  10. 10.6.6 × 1.8 =
  11. 11.8.9 × 0.11 =
  12. 12.0.94 × 1.1 =
  13. 13.1.9 × 0.2 =
  14. 14.5.5 × 2.3 =
  15. 15.0.45 × 2.7 =
  16. 16.5.4 × 0.2 =
  17. 17.0.6 × 0.9 =
  18. 18.4.7 × 0.5 =
  19. 19.4.4 × 0.19 =
  20. 20.0.89 × 2.4 =
  21. 21.5.1 × 2.8 =
  22. 22.9.8 × 0.06 =
  23. 23.0.11 × 1.4 =
  24. 24.0.95 × 1.9 =
  25. 25.3.5 × 3.9 =
  26. 26.0.73 × 2.6 =
  27. 27.7.3 × 0.32 =
  28. 28.0.8 × 0.25 =
  29. 29.8.8 × 1.8 =
  30. 30.0.25 × 3.5 =
  31. 31.0.6 × 0.27 =
  32. 32.0.38 × 1.8 =
  33. 33.0.13 × 1.7 =
  34. 34.6.2 × 3.7 =
  35. 35.1.3 × 0.8 =
  36. 36.7.5 × 1.8 =
  37. 37.0.81 × 1.3 =
  38. 38.0.21 × 3.4 =
  39. 39.0.12 × 1.6 =
  40. 40.0.38 × 0.3 =

Answer key

  1. 6.93
  2. 3.42
  3. 1.848
  4. 0.782
  5. 0.589
  6. 0.21
  7. 30.07
  8. 1.08
  9. 3.724
  10. 11.88
  11. 0.979
  12. 1.034
  13. 0.38
  14. 12.65
  15. 1.215
  16. 1.08
  17. 0.54
  18. 2.35
  19. 0.836
  20. 2.136
  21. 14.28
  22. 0.588
  23. 0.154
  24. 1.805
  25. 13.65
  26. 1.898
  27. 2.336
  28. 0.2
  29. 15.84
  30. 0.875
  31. 0.162
  32. 0.684
  33. 0.221
  34. 22.94
  35. 1.04
  36. 13.5
  37. 1.053
  38. 0.714
  39. 0.192
  40. 0.114

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