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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 978 · 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. 1.2.5 × 0.36 =
  2. 2.0.08 × 1.7 =
  3. 3.3.1 × 0.3 =
  4. 4.0.51 × 0.4 =
  5. 5.9.9 × 1.5 =
  6. 6.0.17 × 2.8 =
  7. 7.0.61 × 3.5 =
  8. 8.0.53 × 3.9 =
  9. 9.4.5 × 1.1 =
  10. 10.3.1 × 2.4 =
  11. 11.6.3 × 0.2 =
  12. 12.0.56 × 1.8 =
  13. 13.6.9 × 0.04 =
  14. 14.6.8 × 0.27 =
  15. 15.2.6 × 0.13 =
  16. 16.0.28 × 2.1 =
  17. 17.0.19 × 1.8 =
  18. 18.0.64 × 2.4 =
  19. 19.0.7 × 0.8 =
  20. 20.5.1 × 2.8 =
  21. 21.0.3 × 0.27 =
  22. 22.8.7 × 0.4 =
  23. 23.0.98 × 0.2 =
  24. 24.0.9 × 3.8 =
  25. 25.0.84 × 1.6 =
  26. 26.0.86 × 3.9 =
  27. 27.0.85 × 3.6 =
  28. 28.0.07 × 2.9 =
  29. 29.4.3 × 0.15 =
  30. 30.2.4 × 0.8 =
  31. 31.6.4 × 3.9 =
  32. 32.0.57 × 1.5 =
  33. 33.0.49 × 0.7 =
  34. 34.9.1 × 0.33 =
  35. 35.5.1 × 2.2 =
  36. 36.0.26 × 3.7 =
  37. 37.4.1 × 2.7 =
  38. 38.0.12 × 1.1 =
  39. 39.5.5 × 0.03 =
  40. 40.3.3 × 0.16 =

Answer key

  1. 0.9
  2. 0.136
  3. 0.93
  4. 0.204
  5. 14.85
  6. 0.476
  7. 2.135
  8. 2.067
  9. 4.95
  10. 7.44
  11. 1.26
  12. 1.008
  13. 0.276
  14. 1.836
  15. 0.338
  16. 0.588
  17. 0.342
  18. 1.536
  19. 0.56
  20. 14.28
  21. 0.081
  22. 3.48
  23. 0.196
  24. 3.42
  25. 1.344
  26. 3.354
  27. 3.06
  28. 0.203
  29. 0.645
  30. 1.92
  31. 24.96
  32. 0.855
  33. 0.343
  34. 3.003
  35. 11.22
  36. 0.962
  37. 11.07
  38. 0.132
  39. 0.165
  40. 0.528

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