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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 669 · 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. 1.1.9 × 1.9 =
  2. 2.0.08 × 3.5 =
  3. 3.0.6 × 0.27 =
  4. 4.9.1 × 0.12 =
  5. 5.1.8 × 3.1 =
  6. 6.1.1 × 0.03 =
  7. 7.4.7 × 0.11 =
  8. 8.7.7 × 0.11 =
  9. 9.0.81 × 0.4 =
  10. 10.4.8 × 0.11 =
  11. 11.0.02 × 1.7 =
  12. 12.0.25 × 0.7 =
  13. 13.5.5 × 0.21 =
  14. 14.7.8 × 0.19 =
  15. 15.2.5 × 2.6 =
  16. 16.0.23 × 0.4 =
  17. 17.0.73 × 0.4 =
  18. 18.5.9 × 0.21 =
  19. 19.3.5 × 0.05 =
  20. 20.1.1 × 0.05 =
  21. 21.0.96 × 3.7 =
  22. 22.1.5 × 1.5 =
  23. 23.4.8 × 0.04 =
  24. 24.0.81 × 0.4 =
  25. 25.0.02 × 1.9 =
  26. 26.0.81 × 3.7 =
  27. 27.5.4 × 0.05 =
  28. 28.0.3 × 0.7 =
  29. 29.9.9 × 0.37 =
  30. 30.2.5 × 0.5 =
  31. 31.0.53 × 1.9 =
  32. 32.0.94 × 1.5 =
  33. 33.1.3 × 3.7 =
  34. 34.2.1 × 1.7 =
  35. 35.2.5 × 0.25 =
  36. 36.0.51 × 2.6 =
  37. 37.2.9 × 0.7 =
  38. 38.0.76 × 0.3 =
  39. 39.8.2 × 0.29 =
  40. 40.0.08 × 2.3 =

Answer key

  1. 3.61
  2. 0.28
  3. 0.162
  4. 1.092
  5. 5.58
  6. 0.033
  7. 0.517
  8. 0.847
  9. 0.324
  10. 0.528
  11. 0.034
  12. 0.175
  13. 1.155
  14. 1.482
  15. 6.5
  16. 0.092
  17. 0.292
  18. 1.239
  19. 0.175
  20. 0.055
  21. 3.552
  22. 2.25
  23. 0.192
  24. 0.324
  25. 0.038
  26. 2.997
  27. 0.27
  28. 0.21
  29. 3.663
  30. 1.25
  31. 1.007
  32. 1.41
  33. 4.81
  34. 3.57
  35. 0.625
  36. 1.326
  37. 2.03
  38. 0.228
  39. 2.378
  40. 0.184

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