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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 410 · 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. 1.0.48 × 2.7 =
  2. 2.0.33 × 1.6 =
  3. 3.5.8 × 1.7 =
  4. 4.1.5 × 1.4 =
  5. 5.9.5 × 1.2 =
  6. 6.0.81 × 2.3 =
  7. 7.9.9 × 0.33 =
  8. 8.0.77 × 0.5 =
  9. 9.0.5 × 3.5 =
  10. 10.2.4 × 0.32 =
  11. 11.0.68 × 2.7 =
  12. 12.6.1 × 2.9 =
  13. 13.6.7 × 0.06 =
  14. 14.0.36 × 1.7 =
  15. 15.0.72 × 1.5 =
  16. 16.3.3 × 3.4 =
  17. 17.1.8 × 0.36 =
  18. 18.0.87 × 3.4 =
  19. 19.1.5 × 0.15 =
  20. 20.0.08 × 0.2 =
  21. 21.2.6 × 0.09 =
  22. 22.0.25 × 2.1 =
  23. 23.0.94 × 1.7 =
  24. 24.0.06 × 0.8 =
  25. 25.0.68 × 2.6 =
  26. 26.0.14 × 1.4 =
  27. 27.0.09 × 0.2 =
  28. 28.0.56 × 3.6 =
  29. 29.0.63 × 3.1 =
  30. 30.0.04 × 0.5 =
  31. 31.7.5 × 0.17 =
  32. 32.1.4 × 2.7 =
  33. 33.0.87 × 3.5 =
  34. 34.5.1 × 0.35 =
  35. 35.7.1 × 1.2 =
  36. 36.1.8 × 0.33 =
  37. 37.0.03 × 1.2 =
  38. 38.0.95 × 0.2 =
  39. 39.6.6 × 0.3 =
  40. 40.0.81 × 2.3 =

Answer key

  1. 1.296
  2. 0.528
  3. 9.86
  4. 2.1
  5. 11.4
  6. 1.863
  7. 3.267
  8. 0.385
  9. 1.75
  10. 0.768
  11. 1.836
  12. 17.69
  13. 0.402
  14. 0.612
  15. 1.08
  16. 11.22
  17. 0.648
  18. 2.958
  19. 0.225
  20. 0.016
  21. 0.234
  22. 0.525
  23. 1.598
  24. 0.048
  25. 1.768
  26. 0.196
  27. 0.018
  28. 2.016
  29. 1.953
  30. 0.02
  31. 1.275
  32. 3.78
  33. 3.045
  34. 1.785
  35. 8.52
  36. 0.594
  37. 0.036
  38. 0.19
  39. 1.98
  40. 1.863

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