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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 418 · 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. 1.0.25 × 0.8 =
  2. 2.0.58 × 3.5 =
  3. 3.0.12 × 1.4 =
  4. 4.0.9 × 0.05 =
  5. 5.0.81 × 2.4 =
  6. 6.0.6 × 0.15 =
  7. 7.0.97 × 3.8 =
  8. 8.0.12 × 3.6 =
  9. 9.8.6 × 3.8 =
  10. 10.3.8 × 0.27 =
  11. 11.6.6 × 3.3 =
  12. 12.4.2 × 2.2 =
  13. 13.0.03 × 0.3 =
  14. 14.0.11 × 2.6 =
  15. 15.2.4 × 1.6 =
  16. 16.8.5 × 0.16 =
  17. 17.0.27 × 3.8 =
  18. 18.0.28 × 2.6 =
  19. 19.4.5 × 0.12 =
  20. 20.4.4 × 0.7 =
  21. 21.3.3 × 0.4 =
  22. 22.0.29 × 3.1 =
  23. 23.0.44 × 3.7 =
  24. 24.2.3 × 2.3 =
  25. 25.8.8 × 3.9 =
  26. 26.0.11 × 3.1 =
  27. 27.0.4 × 0.08 =
  28. 28.3.4 × 0.03 =
  29. 29.0.77 × 1.2 =
  30. 30.1.5 × 0.05 =
  31. 31.0.15 × 0.8 =
  32. 32.7.9 × 0.16 =
  33. 33.7.7 × 0.27 =
  34. 34.6.6 × 1.1 =
  35. 35.0.65 × 0.9 =
  36. 36.3.4 × 0.03 =
  37. 37.4.9 × 1.8 =
  38. 38.9.8 × 1.2 =
  39. 39.0.75 × 1.3 =
  40. 40.4.3 × 2.5 =

Answer key

  1. 0.2
  2. 2.03
  3. 0.168
  4. 0.045
  5. 1.944
  6. 0.09
  7. 3.686
  8. 0.432
  9. 32.68
  10. 1.026
  11. 21.78
  12. 9.24
  13. 0.009
  14. 0.286
  15. 3.84
  16. 1.36
  17. 1.026
  18. 0.728
  19. 0.54
  20. 3.08
  21. 1.32
  22. 0.899
  23. 1.628
  24. 5.29
  25. 34.32
  26. 0.341
  27. 0.032
  28. 0.102
  29. 0.924
  30. 0.075
  31. 0.12
  32. 1.264
  33. 2.079
  34. 7.26
  35. 0.585
  36. 0.102
  37. 8.82
  38. 11.76
  39. 0.975
  40. 10.75

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