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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 985 · 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. 1.0.19 × 0.8 =
  2. 2.4.3 × 0.7 =
  3. 3.2.1 × 0.16 =
  4. 4.8.5 × 0.7 =
  5. 5.4.8 × 0.32 =
  6. 6.1.1 × 0.3 =
  7. 7.3.4 × 0.23 =
  8. 8.0.21 × 0.3 =
  9. 9.3.7 × 2.1 =
  10. 10.0.11 × 2.4 =
  11. 11.0.44 × 2.5 =
  12. 12.0.69 × 3.1 =
  13. 13.0.79 × 1.8 =
  14. 14.5.1 × 2.3 =
  15. 15.0.91 × 1.2 =
  16. 16.0.82 × 0.3 =
  17. 17.3.1 × 0.35 =
  18. 18.0.37 × 0.2 =
  19. 19.0.89 × 3.1 =
  20. 20.0.44 × 0.2 =
  21. 21.1.2 × 2.9 =
  22. 22.1.8 × 3.7 =
  23. 23.0.15 × 1.5 =
  24. 24.0.19 × 1.4 =
  25. 25.0.81 × 1.4 =
  26. 26.3.4 × 3.9 =
  27. 27.0.85 × 2.1 =
  28. 28.0.16 × 0.8 =
  29. 29.0.07 × 0.5 =
  30. 30.3.8 × 2.1 =
  31. 31.3.1 × 0.21 =
  32. 32.0.2 × 2.8 =
  33. 33.9.9 × 2.1 =
  34. 34.0.44 × 3.7 =
  35. 35.3.9 × 1.5 =
  36. 36.2.3 × 0.15 =
  37. 37.6.8 × 0.36 =
  38. 38.4.2 × 0.39 =
  39. 39.0.62 × 1.3 =
  40. 40.0.41 × 0.3 =

Answer key

  1. 0.152
  2. 3.01
  3. 0.336
  4. 5.95
  5. 1.536
  6. 0.33
  7. 0.782
  8. 0.063
  9. 7.77
  10. 0.264
  11. 1.1
  12. 2.139
  13. 1.422
  14. 11.73
  15. 1.092
  16. 0.246
  17. 1.085
  18. 0.074
  19. 2.759
  20. 0.088
  21. 3.48
  22. 6.66
  23. 0.225
  24. 0.266
  25. 1.134
  26. 13.26
  27. 1.785
  28. 0.128
  29. 0.035
  30. 7.98
  31. 0.651
  32. 0.56
  33. 20.79
  34. 1.628
  35. 5.85
  36. 0.345
  37. 2.448
  38. 1.638
  39. 0.806
  40. 0.123

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