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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 899 · 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. 1.3.1 × 0.31 =
  2. 2.0.17 × 2.1 =
  3. 3.0.33 × 2.4 =
  4. 4.0.15 × 3.1 =
  5. 5.0.87 × 0.6 =
  6. 6.9.1 × 0.11 =
  7. 7.0.48 × 1.7 =
  8. 8.0.62 × 0.2 =
  9. 9.8.7 × 0.02 =
  10. 10.0.74 × 2.8 =
  11. 11.0.11 × 2.1 =
  12. 12.0.91 × 0.4 =
  13. 13.0.92 × 1.1 =
  14. 14.8.3 × 0.12 =
  15. 15.6.2 × 3.1 =
  16. 16.0.81 × 1.4 =
  17. 17.3.8 × 0.19 =
  18. 18.7.4 × 0.6 =
  19. 19.1.5 × 2.5 =
  20. 20.3.7 × 3.9 =
  21. 21.6.1 × 0.7 =
  22. 22.7.1 × 1.7 =
  23. 23.6.1 × 0.8 =
  24. 24.7.1 × 1.7 =
  25. 25.5.6 × 0.24 =
  26. 26.0.35 × 1.2 =
  27. 27.0.06 × 2.2 =
  28. 28.0.36 × 2.7 =
  29. 29.0.06 × 3.1 =
  30. 30.3.1 × 0.04 =
  31. 31.5.5 × 0.11 =
  32. 32.8.2 × 2.2 =
  33. 33.5.9 × 0.16 =
  34. 34.5.3 × 0.31 =
  35. 35.1.7 × 2.2 =
  36. 36.0.31 × 3.6 =
  37. 37.4.9 × 0.06 =
  38. 38.0.63 × 0.8 =
  39. 39.0.76 × 0.9 =
  40. 40.5.1 × 0.31 =

Answer key

  1. 0.961
  2. 0.357
  3. 0.792
  4. 0.465
  5. 0.522
  6. 1.001
  7. 0.816
  8. 0.124
  9. 0.174
  10. 2.072
  11. 0.231
  12. 0.364
  13. 1.012
  14. 0.996
  15. 19.22
  16. 1.134
  17. 0.722
  18. 4.44
  19. 3.75
  20. 14.43
  21. 4.27
  22. 12.07
  23. 4.88
  24. 12.07
  25. 1.344
  26. 0.42
  27. 0.132
  28. 0.972
  29. 0.186
  30. 0.124
  31. 0.605
  32. 18.04
  33. 0.944
  34. 1.643
  35. 3.74
  36. 1.116
  37. 0.294
  38. 0.504
  39. 0.684
  40. 1.581

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