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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 564 · 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. 1.0.89 × 1.1 =
  2. 2.0.19 × 0.9 =
  3. 3.5.1 × 0.35 =
  4. 4.1.1 × 3.7 =
  5. 5.0.19 × 0.5 =
  6. 6.0.22 × 3.6 =
  7. 7.0.06 × 3.1 =
  8. 8.0.11 × 1.5 =
  9. 9.3.6 × 0.17 =
  10. 10.5.8 × 0.18 =
  11. 11.0.19 × 0.7 =
  12. 12.4.2 × 1.9 =
  13. 13.7.2 × 2.2 =
  14. 14.0.06 × 2.2 =
  15. 15.0.55 × 1.1 =
  16. 16.6.4 × 0.22 =
  17. 17.0.61 × 0.9 =
  18. 18.7.3 × 0.05 =
  19. 19.0.25 × 3.8 =
  20. 20.0.8 × 1.2 =
  21. 21.0.75 × 1.5 =
  22. 22.0.73 × 1.7 =
  23. 23.1.5 × 3.8 =
  24. 24.0.03 × 2.9 =
  25. 25.0.91 × 0.2 =
  26. 26.9.1 × 0.08 =
  27. 27.0.43 × 2.3 =
  28. 28.8.6 × 0.16 =
  29. 29.0.69 × 2.5 =
  30. 30.0.37 × 0.8 =
  31. 31.9.8 × 0.22 =
  32. 32.2.4 × 1.1 =
  33. 33.0.81 × 2.2 =
  34. 34.0.49 × 0.3 =
  35. 35.9.2 × 1.1 =
  36. 36.0.67 × 1.1 =
  37. 37.2.7 × 0.24 =
  38. 38.3.8 × 0.19 =
  39. 39.0.95 × 1.6 =
  40. 40.0.87 × 0.3 =

Answer key

  1. 0.979
  2. 0.171
  3. 1.785
  4. 4.07
  5. 0.095
  6. 0.792
  7. 0.186
  8. 0.165
  9. 0.612
  10. 1.044
  11. 0.133
  12. 7.98
  13. 15.84
  14. 0.132
  15. 0.605
  16. 1.408
  17. 0.549
  18. 0.365
  19. 0.95
  20. 0.96
  21. 1.125
  22. 1.241
  23. 5.7
  24. 0.087
  25. 0.182
  26. 0.728
  27. 0.989
  28. 1.376
  29. 1.725
  30. 0.296
  31. 2.156
  32. 2.64
  33. 1.782
  34. 0.147
  35. 10.12
  36. 0.737
  37. 0.648
  38. 0.722
  39. 1.52
  40. 0.261

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