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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 804 · 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. 1.0.24 × 3.3 =
  2. 2.1.2 × 1.1 =
  3. 3.0.31 × 0.3 =
  4. 4.9.9 × 0.11 =
  5. 5.0.13 × 2.1 =
  6. 6.0.68 × 0.4 =
  7. 7.4.8 × 0.2 =
  8. 8.3.1 × 0.04 =
  9. 9.8.7 × 3.3 =
  10. 10.0.47 × 0.8 =
  11. 11.2.9 × 0.22 =
  12. 12.9.2 × 0.03 =
  13. 13.0.61 × 3.4 =
  14. 14.9.1 × 1.3 =
  15. 15.0.51 × 1.4 =
  16. 16.8.3 × 2.5 =
  17. 17.0.13 × 1.5 =
  18. 18.0.06 × 1.1 =
  19. 19.0.85 × 3.5 =
  20. 20.0.67 × 0.6 =
  21. 21.0.71 × 1.1 =
  22. 22.1.7 × 0.11 =
  23. 23.1.6 × 2.6 =
  24. 24.8.1 × 3.3 =
  25. 25.4.9 × 0.12 =
  26. 26.6.3 × 0.14 =
  27. 27.9.6 × 0.2 =
  28. 28.6.7 × 3.9 =
  29. 29.7.4 × 0.25 =
  30. 30.0.35 × 1.5 =
  31. 31.0.71 × 1.5 =
  32. 32.2.1 × 0.9 =
  33. 33.7.3 × 0.2 =
  34. 34.8.5 × 0.2 =
  35. 35.0.74 × 2.4 =
  36. 36.0.12 × 3.9 =
  37. 37.0.85 × 0.6 =
  38. 38.0.17 × 0.8 =
  39. 39.6.7 × 0.3 =
  40. 40.0.2 × 0.8 =

Answer key

  1. 0.792
  2. 1.32
  3. 0.093
  4. 1.089
  5. 0.273
  6. 0.272
  7. 0.96
  8. 0.124
  9. 28.71
  10. 0.376
  11. 0.638
  12. 0.276
  13. 2.074
  14. 11.83
  15. 0.714
  16. 20.75
  17. 0.195
  18. 0.066
  19. 2.975
  20. 0.402
  21. 0.781
  22. 0.187
  23. 4.16
  24. 26.73
  25. 0.588
  26. 0.882
  27. 1.92
  28. 26.13
  29. 1.85
  30. 0.525
  31. 1.065
  32. 1.89
  33. 1.46
  34. 1.7
  35. 1.776
  36. 0.468
  37. 0.51
  38. 0.136
  39. 2.01
  40. 0.16

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