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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 646 · 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. 1.1.5 × 0.24 =
  2. 2.5.7 × 2.5 =
  3. 3.3.2 × 0.13 =
  4. 4.0.91 × 0.4 =
  5. 5.4.1 × 3.3 =
  6. 6.3.7 × 0.3 =
  7. 7.8.1 × 1.6 =
  8. 8.7.2 × 0.24 =
  9. 9.0.5 × 1.6 =
  10. 10.8.6 × 0.36 =
  11. 11.2.4 × 0.26 =
  12. 12.0.09 × 1.1 =
  13. 13.8.2 × 0.7 =
  14. 14.0.81 × 1.8 =
  15. 15.0.98 × 1.7 =
  16. 16.4.1 × 0.27 =
  17. 17.0.65 × 3.5 =
  18. 18.4.1 × 3.4 =
  19. 19.0.32 × 3.6 =
  20. 20.6.2 × 2.4 =
  21. 21.0.53 × 1.3 =
  22. 22.0.12 × 3.2 =
  23. 23.0.48 × 3.4 =
  24. 24.7.2 × 0.7 =
  25. 25.2.6 × 1.6 =
  26. 26.0.89 × 1.6 =
  27. 27.0.19 × 2.7 =
  28. 28.0.86 × 0.6 =
  29. 29.0.13 × 1.7 =
  30. 30.1.3 × 0.25 =
  31. 31.0.34 × 0.9 =
  32. 32.5.1 × 1.4 =
  33. 33.0.57 × 0.4 =
  34. 34.1.6 × 0.21 =
  35. 35.5.5 × 0.8 =
  36. 36.0.42 × 1.6 =
  37. 37.5.1 × 0.15 =
  38. 38.6.9 × 2.9 =
  39. 39.8.8 × 0.22 =
  40. 40.4.3 × 2.3 =

Answer key

  1. 0.36
  2. 14.25
  3. 0.416
  4. 0.364
  5. 13.53
  6. 1.11
  7. 12.96
  8. 1.728
  9. 0.8
  10. 3.096
  11. 0.624
  12. 0.099
  13. 5.74
  14. 1.458
  15. 1.666
  16. 1.107
  17. 2.275
  18. 13.94
  19. 1.152
  20. 14.88
  21. 0.689
  22. 0.384
  23. 1.632
  24. 5.04
  25. 4.16
  26. 1.424
  27. 0.513
  28. 0.516
  29. 0.221
  30. 0.325
  31. 0.306
  32. 7.14
  33. 0.228
  34. 0.336
  35. 4.4
  36. 0.672
  37. 0.765
  38. 20.01
  39. 1.936
  40. 9.89

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