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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 495 · 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. 1.0.69 × 3.7 =
  2. 2.5.6 × 0.8 =
  3. 3.3.8 × 0.23 =
  4. 4.0.27 × 2.1 =
  5. 5.8.7 × 0.5 =
  6. 6.0.44 × 2.8 =
  7. 7.1.2 × 0.9 =
  8. 8.1.3 × 0.29 =
  9. 9.4.3 × 0.39 =
  10. 10.8.8 × 0.09 =
  11. 11.0.81 × 2.5 =
  12. 12.0.87 × 1.3 =
  13. 13.3.8 × 0.31 =
  14. 14.0.23 × 1.1 =
  15. 15.4.8 × 0.37 =
  16. 16.6.3 × 0.9 =
  17. 17.2.2 × 0.08 =
  18. 18.1.1 × 0.27 =
  19. 19.7.3 × 3.8 =
  20. 20.0.2 × 2.5 =
  21. 21.8.8 × 0.31 =
  22. 22.0.5 × 0.11 =
  23. 23.0.44 × 3.7 =
  24. 24.0.71 × 3.1 =
  25. 25.1.9 × 0.13 =
  26. 26.9.1 × 0.12 =
  27. 27.0.51 × 2.8 =
  28. 28.2.3 × 1.2 =
  29. 29.7.4 × 0.19 =
  30. 30.8.1 × 3.2 =
  31. 31.7.3 × 2.1 =
  32. 32.0.73 × 3.1 =
  33. 33.2.8 × 0.07 =
  34. 34.9.7 × 2.3 =
  35. 35.2.1 × 2.1 =
  36. 36.8.5 × 2.3 =
  37. 37.1.1 × 3.8 =
  38. 38.0.74 × 3.9 =
  39. 39.9.9 × 0.03 =
  40. 40.1.5 × 2.3 =

Answer key

  1. 2.553
  2. 4.48
  3. 0.874
  4. 0.567
  5. 4.35
  6. 1.232
  7. 1.08
  8. 0.377
  9. 1.677
  10. 0.792
  11. 2.025
  12. 1.131
  13. 1.178
  14. 0.253
  15. 1.776
  16. 5.67
  17. 0.176
  18. 0.297
  19. 27.74
  20. 0.5
  21. 2.728
  22. 0.055
  23. 1.628
  24. 2.201
  25. 0.247
  26. 1.092
  27. 1.428
  28. 2.76
  29. 1.406
  30. 25.92
  31. 15.33
  32. 2.263
  33. 0.196
  34. 22.31
  35. 4.41
  36. 19.55
  37. 4.18
  38. 2.886
  39. 0.297
  40. 3.45

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