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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 877 · 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. 1.9.8 × 3.1 =
  2. 2.4.8 × 2.1 =
  3. 3.1.8 × 0.15 =
  4. 4.2.3 × 0.09 =
  5. 5.9.1 × 3.8 =
  6. 6.2.8 × 2.7 =
  7. 7.0.25 × 1.2 =
  8. 8.0.46 × 2.1 =
  9. 9.0.53 × 2.6 =
  10. 10.1.1 × 0.33 =
  11. 11.2.8 × 3.5 =
  12. 12.0.72 × 3.9 =
  13. 13.0.91 × 2.8 =
  14. 14.0.64 × 0.3 =
  15. 15.3.2 × 1.1 =
  16. 16.9.1 × 0.26 =
  17. 17.5.1 × 0.33 =
  18. 18.0.62 × 3.6 =
  19. 19.6.4 × 1.9 =
  20. 20.0.21 × 2.4 =
  21. 21.5.3 × 1.2 =
  22. 22.0.06 × 2.1 =
  23. 23.1.8 × 0.28 =
  24. 24.3.9 × 0.11 =
  25. 25.0.77 × 1.4 =
  26. 26.8.9 × 0.5 =
  27. 27.1.7 × 0.23 =
  28. 28.0.51 × 3.1 =
  29. 29.1.6 × 0.4 =
  30. 30.4.8 × 0.29 =
  31. 31.0.57 × 1.8 =
  32. 32.9.5 × 0.34 =
  33. 33.0.24 × 1.2 =
  34. 34.0.54 × 3.6 =
  35. 35.1.1 × 0.14 =
  36. 36.6.4 × 0.6 =
  37. 37.0.51 × 3.8 =
  38. 38.0.3 × 3.5 =
  39. 39.1.3 × 3.3 =
  40. 40.0.3 × 0.08 =

Answer key

  1. 30.38
  2. 10.08
  3. 0.27
  4. 0.207
  5. 34.58
  6. 7.56
  7. 0.3
  8. 0.966
  9. 1.378
  10. 0.363
  11. 9.8
  12. 2.808
  13. 2.548
  14. 0.192
  15. 3.52
  16. 2.366
  17. 1.683
  18. 2.232
  19. 12.16
  20. 0.504
  21. 6.36
  22. 0.126
  23. 0.504
  24. 0.429
  25. 1.078
  26. 4.45
  27. 0.391
  28. 1.581
  29. 0.64
  30. 1.392
  31. 1.026
  32. 3.23
  33. 0.288
  34. 1.944
  35. 0.154
  36. 3.84
  37. 1.938
  38. 1.05
  39. 4.29
  40. 0.024

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