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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 75 · 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. 1.1.4 × 0.12 =
  2. 2.0.71 × 0.4 =
  3. 3.0.59 × 2.3 =
  4. 4.0.81 × 0.7 =
  5. 5.0.8 × 2.4 =
  6. 6.0.34 × 3.3 =
  7. 7.0.36 × 1.3 =
  8. 8.0.21 × 2.3 =
  9. 9.3.5 × 1.4 =
  10. 10.0.59 × 2.1 =
  11. 11.1.6 × 1.3 =
  12. 12.9.1 × 0.07 =
  13. 13.6.1 × 2.5 =
  14. 14.0.21 × 3.6 =
  15. 15.0.05 × 2.4 =
  16. 16.0.38 × 1.3 =
  17. 17.0.95 × 3.5 =
  18. 18.8.2 × 0.29 =
  19. 19.1.6 × 0.8 =
  20. 20.0.63 × 1.5 =
  21. 21.3.4 × 1.9 =
  22. 22.9.7 × 0.16 =
  23. 23.0.46 × 3.6 =
  24. 24.5.3 × 0.02 =
  25. 25.0.74 × 3.5 =
  26. 26.0.71 × 0.3 =
  27. 27.1.1 × 0.03 =
  28. 28.8.1 × 0.11 =
  29. 29.6.1 × 0.39 =
  30. 30.0.41 × 3.6 =
  31. 31.0.02 × 3.3 =
  32. 32.0.55 × 3.9 =
  33. 33.0.41 × 1.9 =
  34. 34.0.93 × 1.7 =
  35. 35.0.21 × 1.8 =
  36. 36.7.2 × 1.2 =
  37. 37.0.69 × 0.7 =
  38. 38.0.71 × 0.9 =
  39. 39.0.53 × 3.1 =
  40. 40.8.5 × 2.2 =

Answer key

  1. 0.168
  2. 0.284
  3. 1.357
  4. 0.567
  5. 1.92
  6. 1.122
  7. 0.468
  8. 0.483
  9. 4.9
  10. 1.239
  11. 2.08
  12. 0.637
  13. 15.25
  14. 0.756
  15. 0.12
  16. 0.494
  17. 3.325
  18. 2.378
  19. 1.28
  20. 0.945
  21. 6.46
  22. 1.552
  23. 1.656
  24. 0.106
  25. 2.59
  26. 0.213
  27. 0.033
  28. 0.891
  29. 2.379
  30. 1.476
  31. 0.066
  32. 2.145
  33. 0.779
  34. 1.581
  35. 0.378
  36. 8.64
  37. 0.483
  38. 0.639
  39. 1.643
  40. 18.7

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