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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 526 · 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. 1.0.98 × 1.3 =
  2. 2.5.8 × 0.29 =
  3. 3.0.87 × 0.4 =
  4. 4.3.3 × 1.5 =
  5. 5.2.3 × 1.4 =
  6. 6.2.2 × 0.23 =
  7. 7.0.41 × 3.1 =
  8. 8.0.48 × 1.9 =
  9. 9.5.6 × 3.2 =
  10. 10.0.08 × 1.2 =
  11. 11.8.8 × 3.1 =
  12. 12.1.8 × 0.31 =
  13. 13.0.07 × 1.9 =
  14. 14.0.18 × 1.1 =
  15. 15.3.6 × 3.7 =
  16. 16.0.3 × 0.5 =
  17. 17.4.8 × 2.8 =
  18. 18.4.5 × 0.6 =
  19. 19.0.41 × 1.1 =
  20. 20.5.3 × 2.3 =
  21. 21.0.05 × 2.1 =
  22. 22.4.2 × 1.7 =
  23. 23.2.5 × 1.8 =
  24. 24.9.4 × 1.3 =
  25. 25.4.7 × 0.11 =
  26. 26.2.1 × 0.16 =
  27. 27.6.1 × 0.7 =
  28. 28.1.6 × 3.3 =
  29. 29.0.6 × 1.3 =
  30. 30.2.1 × 3.1 =
  31. 31.0.22 × 3.8 =
  32. 32.0.7 × 3.3 =
  33. 33.0.19 × 3.2 =
  34. 34.0.03 × 1.2 =
  35. 35.0.34 × 3.9 =
  36. 36.3.9 × 0.28 =
  37. 37.0.5 × 3.1 =
  38. 38.2.1 × 0.13 =
  39. 39.0.97 × 3.9 =
  40. 40.0.76 × 1.1 =

Answer key

  1. 1.274
  2. 1.682
  3. 0.348
  4. 4.95
  5. 3.22
  6. 0.506
  7. 1.271
  8. 0.912
  9. 17.92
  10. 0.096
  11. 27.28
  12. 0.558
  13. 0.133
  14. 0.198
  15. 13.32
  16. 0.15
  17. 13.44
  18. 2.7
  19. 0.451
  20. 12.19
  21. 0.105
  22. 7.14
  23. 4.5
  24. 12.22
  25. 0.517
  26. 0.336
  27. 4.27
  28. 5.28
  29. 0.78
  30. 6.51
  31. 0.836
  32. 2.31
  33. 0.608
  34. 0.036
  35. 1.326
  36. 1.092
  37. 1.55
  38. 0.273
  39. 3.783
  40. 0.836

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