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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 924 · 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. 1.0.46 × 1.5 =
  2. 2.5.6 × 0.8 =
  3. 3.0.78 × 0.5 =
  4. 4.0.58 × 2.8 =
  5. 5.0.61 × 2.3 =
  6. 6.0.85 × 0.4 =
  7. 7.4.2 × 0.25 =
  8. 8.7.7 × 3.1 =
  9. 9.0.6 × 2.7 =
  10. 10.4.9 × 0.18 =
  11. 11.0.64 × 1.4 =
  12. 12.0.48 × 0.4 =
  13. 13.0.8 × 0.04 =
  14. 14.0.55 × 1.1 =
  15. 15.0.16 × 2.6 =
  16. 16.0.55 × 3.4 =
  17. 17.3.4 × 0.6 =
  18. 18.0.11 × 0.4 =
  19. 19.0.07 × 2.6 =
  20. 20.2.3 × 0.31 =
  21. 21.5.3 × 2.8 =
  22. 22.0.91 × 1.7 =
  23. 23.0.64 × 3.1 =
  24. 24.0.86 × 0.5 =
  25. 25.6.9 × 0.11 =
  26. 26.2.2 × 0.36 =
  27. 27.0.34 × 3.6 =
  28. 28.0.4 × 1.3 =
  29. 29.1.5 × 1.2 =
  30. 30.0.62 × 2.1 =
  31. 31.0.3 × 1.1 =
  32. 32.0.67 × 1.3 =
  33. 33.1.5 × 1.2 =
  34. 34.0.17 × 0.2 =
  35. 35.7.6 × 1.2 =
  36. 36.0.38 × 0.6 =
  37. 37.0.67 × 1.2 =
  38. 38.3.6 × 3.1 =
  39. 39.0.36 × 3.1 =
  40. 40.9.3 × 1.3 =

Answer key

  1. 0.69
  2. 4.48
  3. 0.39
  4. 1.624
  5. 1.403
  6. 0.34
  7. 1.05
  8. 23.87
  9. 1.62
  10. 0.882
  11. 0.896
  12. 0.192
  13. 0.032
  14. 0.605
  15. 0.416
  16. 1.87
  17. 2.04
  18. 0.044
  19. 0.182
  20. 0.713
  21. 14.84
  22. 1.547
  23. 1.984
  24. 0.43
  25. 0.759
  26. 0.792
  27. 1.224
  28. 0.52
  29. 1.8
  30. 1.302
  31. 0.33
  32. 0.871
  33. 1.8
  34. 0.034
  35. 9.12
  36. 0.228
  37. 0.804
  38. 11.16
  39. 1.116
  40. 12.09

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