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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 673 · 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 × 2.7 =
  2. 2.0.96 × 1.4 =
  3. 3.7.4 × 0.18 =
  4. 4.0.71 × 1.6 =
  5. 5.1.4 × 0.28 =
  6. 6.0.86 × 1.1 =
  7. 7.0.75 × 0.8 =
  8. 8.0.63 × 2.1 =
  9. 9.5.7 × 0.23 =
  10. 10.0.33 × 1.5 =
  11. 11.0.08 × 1.9 =
  12. 12.0.69 × 3.6 =
  13. 13.0.71 × 0.3 =
  14. 14.8.5 × 2.3 =
  15. 15.0.04 × 2.2 =
  16. 16.7.7 × 3.4 =
  17. 17.3.5 × 1.6 =
  18. 18.0.29 × 3.6 =
  19. 19.0.69 × 1.2 =
  20. 20.3.5 × 1.1 =
  21. 21.0.99 × 1.1 =
  22. 22.3.2 × 0.9 =
  23. 23.8.1 × 0.39 =
  24. 24.2.1 × 0.33 =
  25. 25.2.1 × 0.8 =
  26. 26.0.52 × 1.9 =
  27. 27.3.1 × 2.1 =
  28. 28.8.9 × 0.21 =
  29. 29.9.2 × 1.6 =
  30. 30.8.5 × 3.4 =
  31. 31.2.1 × 1.8 =
  32. 32.8.8 × 0.39 =
  33. 33.9.3 × 0.7 =
  34. 34.0.55 × 3.7 =
  35. 35.8.7 × 0.11 =
  36. 36.8.7 × 0.13 =
  37. 37.5.9 × 0.08 =
  38. 38.0.04 × 0.3 =
  39. 39.0.58 × 3.9 =
  40. 40.0.81 × 0.4 =

Answer key

  1. 0.648
  2. 1.344
  3. 1.332
  4. 1.136
  5. 0.392
  6. 0.946
  7. 0.6
  8. 1.323
  9. 1.311
  10. 0.495
  11. 0.152
  12. 2.484
  13. 0.213
  14. 19.55
  15. 0.088
  16. 26.18
  17. 5.6
  18. 1.044
  19. 0.828
  20. 3.85
  21. 1.089
  22. 2.88
  23. 3.159
  24. 0.693
  25. 1.68
  26. 0.988
  27. 6.51
  28. 1.869
  29. 14.72
  30. 28.9
  31. 3.78
  32. 3.432
  33. 6.51
  34. 2.035
  35. 0.957
  36. 1.131
  37. 0.472
  38. 0.012
  39. 2.262
  40. 0.324

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