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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 522 · 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. 1.0.47 × 0.8 =
  2. 2.0.51 × 3.8 =
  3. 3.4.6 × 0.29 =
  4. 4.3.3 × 0.31 =
  5. 5.0.35 × 0.5 =
  6. 6.5.9 × 1.6 =
  7. 7.0.76 × 0.4 =
  8. 8.0.81 × 2.9 =
  9. 9.0.77 × 0.8 =
  10. 10.0.91 × 2.3 =
  11. 11.0.98 × 2.1 =
  12. 12.0.54 × 0.8 =
  13. 13.8.3 × 0.7 =
  14. 14.0.18 × 3.3 =
  15. 15.0.97 × 3.3 =
  16. 16.0.92 × 3.6 =
  17. 17.3.8 × 3.3 =
  18. 18.0.83 × 0.5 =
  19. 19.0.61 × 1.9 =
  20. 20.9.8 × 2.8 =
  21. 21.0.63 × 3.5 =
  22. 22.1.5 × 3.9 =
  23. 23.6.7 × 0.02 =
  24. 24.6.6 × 0.05 =
  25. 25.3.1 × 3.7 =
  26. 26.0.08 × 3.1 =
  27. 27.3.1 × 1.4 =
  28. 28.0.21 × 1.6 =
  29. 29.0.22 × 1.4 =
  30. 30.0.81 × 1.2 =
  31. 31.0.14 × 1.7 =
  32. 32.7.1 × 0.8 =
  33. 33.0.2 × 0.09 =
  34. 34.0.27 × 0.4 =
  35. 35.9.6 × 0.13 =
  36. 36.0.24 × 0.4 =
  37. 37.0.66 × 2.5 =
  38. 38.0.71 × 3.2 =
  39. 39.7.2 × 0.08 =
  40. 40.1.6 × 0.28 =

Answer key

  1. 0.376
  2. 1.938
  3. 1.334
  4. 1.023
  5. 0.175
  6. 9.44
  7. 0.304
  8. 2.349
  9. 0.616
  10. 2.093
  11. 2.058
  12. 0.432
  13. 5.81
  14. 0.594
  15. 3.201
  16. 3.312
  17. 12.54
  18. 0.415
  19. 1.159
  20. 27.44
  21. 2.205
  22. 5.85
  23. 0.134
  24. 0.33
  25. 11.47
  26. 0.248
  27. 4.34
  28. 0.336
  29. 0.308
  30. 0.972
  31. 0.238
  32. 5.68
  33. 0.018
  34. 0.108
  35. 1.248
  36. 0.096
  37. 1.65
  38. 2.272
  39. 0.576
  40. 0.448

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