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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 353 · 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. 1.0.83 × 0.2 =
  2. 2.7.4 × 0.3 =
  3. 3.5.9 × 3.1 =
  4. 4.3.7 × 0.33 =
  5. 5.0.34 × 2.1 =
  6. 6.0.83 × 2.1 =
  7. 7.4.1 × 0.38 =
  8. 8.0.11 × 0.5 =
  9. 9.0.46 × 1.7 =
  10. 10.9.5 × 0.06 =
  11. 11.0.23 × 3.3 =
  12. 12.0.64 × 0.3 =
  13. 13.0.02 × 2.6 =
  14. 14.2.8 × 2.8 =
  15. 15.2.7 × 0.38 =
  16. 16.1.8 × 0.4 =
  17. 17.0.28 × 2.4 =
  18. 18.2.2 × 0.05 =
  19. 19.3.4 × 2.3 =
  20. 20.0.71 × 2.5 =
  21. 21.7.8 × 3.2 =
  22. 22.0.09 × 0.9 =
  23. 23.0.6 × 0.11 =
  24. 24.0.46 × 1.2 =
  25. 25.2.8 × 2.7 =
  26. 26.9.1 × 3.2 =
  27. 27.6.4 × 2.8 =
  28. 28.0.67 × 1.6 =
  29. 29.0.6 × 0.7 =
  30. 30.0.55 × 0.4 =
  31. 31.5.8 × 3.5 =
  32. 32.0.84 × 2.9 =
  33. 33.0.57 × 0.9 =
  34. 34.0.56 × 3.2 =
  35. 35.0.24 × 0.8 =
  36. 36.0.82 × 0.7 =
  37. 37.0.9 × 0.21 =
  38. 38.0.44 × 1.4 =
  39. 39.1.6 × 0.06 =
  40. 40.3.8 × 0.03 =

Answer key

  1. 0.166
  2. 2.22
  3. 18.29
  4. 1.221
  5. 0.714
  6. 1.743
  7. 1.558
  8. 0.055
  9. 0.782
  10. 0.57
  11. 0.759
  12. 0.192
  13. 0.052
  14. 7.84
  15. 1.026
  16. 0.72
  17. 0.672
  18. 0.11
  19. 7.82
  20. 1.775
  21. 24.96
  22. 0.081
  23. 0.066
  24. 0.552
  25. 7.56
  26. 29.12
  27. 17.92
  28. 1.072
  29. 0.42
  30. 0.22
  31. 20.3
  32. 2.436
  33. 0.513
  34. 1.792
  35. 0.192
  36. 0.574
  37. 0.189
  38. 0.616
  39. 0.096
  40. 0.114

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