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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 927 · 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. 1.0.85 × 3.2 =
  2. 2.0.46 × 2.9 =
  3. 3.7.5 × 0.17 =
  4. 4.0.6 × 0.38 =
  5. 5.4.3 × 0.21 =
  6. 6.7.3 × 0.02 =
  7. 7.2.4 × 0.9 =
  8. 8.0.19 × 3.3 =
  9. 9.2.3 × 0.35 =
  10. 10.0.55 × 2.9 =
  11. 11.5.9 × 0.26 =
  12. 12.0.75 × 0.7 =
  13. 13.6.1 × 0.4 =
  14. 14.9.8 × 0.11 =
  15. 15.7.7 × 2.9 =
  16. 16.0.81 × 3.7 =
  17. 17.4.6 × 0.08 =
  18. 18.6.3 × 0.03 =
  19. 19.2.2 × 2.3 =
  20. 20.1.9 × 0.38 =
  21. 21.0.11 × 2.1 =
  22. 22.0.35 × 2.1 =
  23. 23.6.9 × 0.06 =
  24. 24.3.1 × 0.22 =
  25. 25.3.1 × 3.9 =
  26. 26.3.1 × 2.1 =
  27. 27.8.9 × 0.04 =
  28. 28.0.89 × 1.2 =
  29. 29.0.07 × 1.1 =
  30. 30.0.78 × 1.9 =
  31. 31.8.6 × 2.9 =
  32. 32.1.3 × 0.16 =
  33. 33.0.06 × 1.5 =
  34. 34.2.3 × 2.8 =
  35. 35.3.6 × 0.02 =
  36. 36.0.56 × 2.2 =
  37. 37.0.07 × 0.6 =
  38. 38.9.7 × 2.8 =
  39. 39.8.8 × 0.9 =
  40. 40.4.4 × 0.06 =

Answer key

  1. 2.72
  2. 1.334
  3. 1.275
  4. 0.228
  5. 0.903
  6. 0.146
  7. 2.16
  8. 0.627
  9. 0.805
  10. 1.595
  11. 1.534
  12. 0.525
  13. 2.44
  14. 1.078
  15. 22.33
  16. 2.997
  17. 0.368
  18. 0.189
  19. 5.06
  20. 0.722
  21. 0.231
  22. 0.735
  23. 0.414
  24. 0.682
  25. 12.09
  26. 6.51
  27. 0.356
  28. 1.068
  29. 0.077
  30. 1.482
  31. 24.94
  32. 0.208
  33. 0.09
  34. 6.44
  35. 0.072
  36. 1.232
  37. 0.042
  38. 27.16
  39. 7.92
  40. 0.264

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