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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 110 · 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. 1.0.36 × 1.5 =
  2. 2.0.59 × 0.8 =
  3. 3.0.12 × 0.5 =
  4. 4.6.1 × 0.5 =
  5. 5.3.2 × 2.7 =
  6. 6.5.8 × 0.18 =
  7. 7.0.7 × 0.37 =
  8. 8.0.5 × 3.1 =
  9. 9.0.24 × 1.3 =
  10. 10.6.2 × 0.21 =
  11. 11.1.5 × 2.3 =
  12. 12.0.31 × 3.6 =
  13. 13.3.6 × 3.9 =
  14. 14.0.74 × 2.4 =
  15. 15.0.81 × 2.2 =
  16. 16.0.06 × 3.6 =
  17. 17.5.3 × 1.4 =
  18. 18.0.66 × 1.9 =
  19. 19.2.4 × 0.28 =
  20. 20.0.4 × 0.6 =
  21. 21.2.3 × 1.3 =
  22. 22.0.9 × 3.1 =
  23. 23.0.58 × 2.6 =
  24. 24.0.4 × 0.7 =
  25. 25.1.6 × 3.1 =
  26. 26.0.61 × 2.9 =
  27. 27.9.8 × 0.38 =
  28. 28.3.2 × 1.1 =
  29. 29.0.43 × 1.8 =
  30. 30.2.3 × 1.2 =
  31. 31.0.38 × 1.5 =
  32. 32.0.42 × 0.8 =
  33. 33.0.12 × 0.8 =
  34. 34.6.1 × 0.07 =
  35. 35.2.4 × 0.04 =
  36. 36.0.31 × 1.7 =
  37. 37.4.6 × 3.6 =
  38. 38.0.85 × 1.3 =
  39. 39.8.1 × 3.2 =
  40. 40.7.1 × 0.36 =

Answer key

  1. 0.54
  2. 0.472
  3. 0.06
  4. 3.05
  5. 8.64
  6. 1.044
  7. 0.259
  8. 1.55
  9. 0.312
  10. 1.302
  11. 3.45
  12. 1.116
  13. 14.04
  14. 1.776
  15. 1.782
  16. 0.216
  17. 7.42
  18. 1.254
  19. 0.672
  20. 0.24
  21. 2.99
  22. 2.79
  23. 1.508
  24. 0.28
  25. 4.96
  26. 1.769
  27. 3.724
  28. 3.52
  29. 0.774
  30. 2.76
  31. 0.57
  32. 0.336
  33. 0.096
  34. 0.427
  35. 0.096
  36. 0.527
  37. 16.56
  38. 1.105
  39. 25.92
  40. 2.556

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