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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 355 · 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. 1.3.8 × 1.9 =
  2. 2.5.8 × 0.08 =
  3. 3.0.76 × 3.7 =
  4. 4.7.4 × 0.36 =
  5. 5.0.24 × 1.2 =
  6. 6.0.91 × 1.1 =
  7. 7.0.13 × 2.4 =
  8. 8.3.5 × 2.4 =
  9. 9.0.02 × 3.6 =
  10. 10.1.1 × 0.5 =
  11. 11.0.09 × 0.8 =
  12. 12.7.1 × 0.21 =
  13. 13.0.21 × 1.1 =
  14. 14.0.37 × 0.6 =
  15. 15.2.8 × 1.9 =
  16. 16.0.57 × 3.6 =
  17. 17.5.9 × 0.08 =
  18. 18.8.5 × 1.9 =
  19. 19.0.25 × 0.7 =
  20. 20.0.73 × 2.8 =
  21. 21.0.76 × 0.5 =
  22. 22.5.9 × 0.3 =
  23. 23.0.51 × 2.6 =
  24. 24.0.73 × 2.4 =
  25. 25.8.5 × 0.39 =
  26. 26.7.7 × 0.28 =
  27. 27.9.3 × 0.6 =
  28. 28.0.48 × 3.6 =
  29. 29.0.76 × 2.1 =
  30. 30.0.57 × 2.3 =
  31. 31.0.33 × 1.3 =
  32. 32.3.7 × 0.31 =
  33. 33.0.63 × 1.4 =
  34. 34.0.09 × 2.5 =
  35. 35.0.3 × 0.21 =
  36. 36.4.5 × 0.32 =
  37. 37.6.5 × 0.14 =
  38. 38.0.46 × 2.5 =
  39. 39.6.3 × 1.9 =
  40. 40.0.02 × 0.2 =

Answer key

  1. 7.22
  2. 0.464
  3. 2.812
  4. 2.664
  5. 0.288
  6. 1.001
  7. 0.312
  8. 8.4
  9. 0.072
  10. 0.55
  11. 0.072
  12. 1.491
  13. 0.231
  14. 0.222
  15. 5.32
  16. 2.052
  17. 0.472
  18. 16.15
  19. 0.175
  20. 2.044
  21. 0.38
  22. 1.77
  23. 1.326
  24. 1.752
  25. 3.315
  26. 2.156
  27. 5.58
  28. 1.728
  29. 1.596
  30. 1.311
  31. 0.429
  32. 1.147
  33. 0.882
  34. 0.225
  35. 0.063
  36. 1.44
  37. 0.91
  38. 1.15
  39. 11.97
  40. 0.004

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