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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 407 · 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. 1.0.71 × 0.7 =
  2. 2.0.18 × 3.4 =
  3. 3.0.41 × 2.1 =
  4. 4.1.6 × 3.8 =
  5. 5.6.3 × 0.12 =
  6. 6.1.8 × 3.1 =
  7. 7.1.4 × 0.4 =
  8. 8.2.4 × 3.6 =
  9. 9.0.45 × 2.8 =
  10. 10.0.05 × 0.3 =
  11. 11.0.83 × 3.6 =
  12. 12.0.53 × 1.9 =
  13. 13.0.94 × 0.4 =
  14. 14.1.7 × 0.39 =
  15. 15.0.91 × 1.6 =
  16. 16.0.23 × 2.7 =
  17. 17.0.34 × 3.5 =
  18. 18.0.05 × 1.2 =
  19. 19.2.8 × 0.2 =
  20. 20.0.16 × 3.3 =
  21. 21.6.5 × 1.6 =
  22. 22.0.29 × 3.8 =
  23. 23.0.79 × 0.6 =
  24. 24.0.35 × 1.4 =
  25. 25.2.8 × 2.8 =
  26. 26.0.6 × 0.02 =
  27. 27.0.9 × 0.7 =
  28. 28.0.89 × 3.9 =
  29. 29.2.4 × 0.25 =
  30. 30.0.64 × 1.5 =
  31. 31.0.79 × 3.7 =
  32. 32.9.2 × 0.21 =
  33. 33.1.3 × 0.9 =
  34. 34.5.5 × 0.21 =
  35. 35.9.7 × 0.9 =
  36. 36.5.1 × 0.7 =
  37. 37.3.9 × 0.35 =
  38. 38.0.81 × 1.2 =
  39. 39.5.9 × 0.16 =
  40. 40.0.7 × 3.5 =

Answer key

  1. 0.497
  2. 0.612
  3. 0.861
  4. 6.08
  5. 0.756
  6. 5.58
  7. 0.56
  8. 8.64
  9. 1.26
  10. 0.015
  11. 2.988
  12. 1.007
  13. 0.376
  14. 0.663
  15. 1.456
  16. 0.621
  17. 1.19
  18. 0.06
  19. 0.56
  20. 0.528
  21. 10.4
  22. 1.102
  23. 0.474
  24. 0.49
  25. 7.84
  26. 0.012
  27. 0.63
  28. 3.471
  29. 0.6
  30. 0.96
  31. 2.923
  32. 1.932
  33. 1.17
  34. 1.155
  35. 8.73
  36. 3.57
  37. 1.365
  38. 0.972
  39. 0.944
  40. 2.45

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