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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 125 · 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. 1.6.5 × 0.4 =
  2. 2.0.55 × 3.3 =
  3. 3.0.58 × 0.7 =
  4. 4.0.06 × 0.7 =
  5. 5.0.23 × 1.3 =
  6. 6.8.9 × 3.1 =
  7. 7.7.6 × 0.26 =
  8. 8.4.2 × 2.3 =
  9. 9.4.8 × 3.1 =
  10. 10.9.7 × 0.27 =
  11. 11.0.63 × 1.8 =
  12. 12.4.1 × 0.26 =
  13. 13.2.5 × 0.09 =
  14. 14.1.5 × 0.9 =
  15. 15.3.2 × 0.17 =
  16. 16.0.61 × 1.9 =
  17. 17.8.3 × 1.1 =
  18. 18.0.36 × 0.7 =
  19. 19.0.23 × 1.9 =
  20. 20.0.83 × 2.4 =
  21. 21.0.59 × 2.1 =
  22. 22.0.88 × 1.2 =
  23. 23.7.9 × 1.2 =
  24. 24.0.83 × 2.4 =
  25. 25.0.15 × 3.4 =
  26. 26.9.6 × 0.11 =
  27. 27.1.9 × 0.25 =
  28. 28.4.4 × 0.28 =
  29. 29.6.4 × 2.9 =
  30. 30.9.8 × 0.08 =
  31. 31.0.29 × 0.3 =
  32. 32.0.91 × 1.3 =
  33. 33.0.22 × 2.3 =
  34. 34.0.26 × 2.2 =
  35. 35.0.37 × 1.1 =
  36. 36.5.8 × 2.2 =
  37. 37.0.55 × 1.1 =
  38. 38.0.81 × 0.6 =
  39. 39.0.08 × 3.7 =
  40. 40.3.9 × 0.11 =

Answer key

  1. 2.6
  2. 1.815
  3. 0.406
  4. 0.042
  5. 0.299
  6. 27.59
  7. 1.976
  8. 9.66
  9. 14.88
  10. 2.619
  11. 1.134
  12. 1.066
  13. 0.225
  14. 1.35
  15. 0.544
  16. 1.159
  17. 9.13
  18. 0.252
  19. 0.437
  20. 1.992
  21. 1.239
  22. 1.056
  23. 9.48
  24. 1.992
  25. 0.51
  26. 1.056
  27. 0.475
  28. 1.232
  29. 18.56
  30. 0.784
  31. 0.087
  32. 1.183
  33. 0.506
  34. 0.572
  35. 0.407
  36. 12.76
  37. 0.605
  38. 0.486
  39. 0.296
  40. 0.429

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