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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 426 · 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. 1.4.6 × 0.5 =
  2. 2.3.8 × 1.6 =
  3. 3.5.9 × 2.8 =
  4. 4.8.4 × 0.18 =
  5. 5.0.68 × 2.6 =
  6. 6.6.3 × 0.04 =
  7. 7.0.21 × 1.2 =
  8. 8.1.7 × 2.4 =
  9. 9.9.7 × 0.05 =
  10. 10.4.3 × 0.17 =
  11. 11.0.29 × 0.6 =
  12. 12.6.6 × 0.3 =
  13. 13.0.5 × 0.32 =
  14. 14.0.77 × 0.3 =
  15. 15.0.39 × 3.5 =
  16. 16.0.8 × 0.31 =
  17. 17.2.6 × 1.3 =
  18. 18.1.5 × 2.6 =
  19. 19.0.67 × 2.2 =
  20. 20.5.1 × 1.2 =
  21. 21.0.73 × 2.1 =
  22. 22.0.61 × 1.9 =
  23. 23.4.3 × 0.17 =
  24. 24.8.2 × 0.34 =
  25. 25.0.06 × 2.8 =
  26. 26.0.15 × 2.6 =
  27. 27.0.51 × 1.1 =
  28. 28.0.77 × 1.1 =
  29. 29.0.18 × 2.3 =
  30. 30.6.1 × 0.32 =
  31. 31.0.94 × 0.2 =
  32. 32.3.8 × 0.15 =
  33. 33.5.2 × 0.15 =
  34. 34.2.4 × 0.16 =
  35. 35.0.77 × 1.5 =
  36. 36.1.8 × 0.5 =
  37. 37.3.8 × 2.7 =
  38. 38.4.1 × 0.14 =
  39. 39.4.4 × 3.4 =
  40. 40.0.99 × 2.7 =

Answer key

  1. 2.3
  2. 6.08
  3. 16.52
  4. 1.512
  5. 1.768
  6. 0.252
  7. 0.252
  8. 4.08
  9. 0.485
  10. 0.731
  11. 0.174
  12. 1.98
  13. 0.16
  14. 0.231
  15. 1.365
  16. 0.248
  17. 3.38
  18. 3.9
  19. 1.474
  20. 6.12
  21. 1.533
  22. 1.159
  23. 0.731
  24. 2.788
  25. 0.168
  26. 0.39
  27. 0.561
  28. 0.847
  29. 0.414
  30. 1.952
  31. 0.188
  32. 0.57
  33. 0.78
  34. 0.384
  35. 1.155
  36. 0.9
  37. 10.26
  38. 0.574
  39. 14.96
  40. 2.673

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