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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 424 · 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. 1.0.4 × 0.8 =
  2. 2.8.3 × 3.8 =
  3. 3.1.7 × 0.26 =
  4. 4.7.9 × 3.5 =
  5. 5.0.27 × 2.5 =
  6. 6.5.9 × 0.4 =
  7. 7.2.6 × 0.14 =
  8. 8.0.15 × 2.6 =
  9. 9.2.6 × 1.1 =
  10. 10.0.91 × 1.5 =
  11. 11.9.6 × 0.31 =
  12. 12.0.06 × 2.5 =
  13. 13.9.5 × 2.5 =
  14. 14.0.9 × 0.2 =
  15. 15.0.8 × 0.34 =
  16. 16.0.6 × 2.1 =
  17. 17.0.91 × 1.8 =
  18. 18.0.84 × 2.1 =
  19. 19.6.9 × 3.1 =
  20. 20.5.1 × 2.2 =
  21. 21.0.26 × 2.6 =
  22. 22.5.8 × 1.1 =
  23. 23.8.1 × 0.8 =
  24. 24.0.03 × 2.8 =
  25. 25.3.7 × 0.3 =
  26. 26.1.6 × 3.2 =
  27. 27.0.57 × 3.9 =
  28. 28.9.3 × 0.25 =
  29. 29.0.53 × 1.9 =
  30. 30.5.8 × 0.9 =
  31. 31.0.3 × 0.3 =
  32. 32.0.21 × 2.7 =
  33. 33.0.16 × 3.7 =
  34. 34.0.92 × 2.1 =
  35. 35.0.98 × 0.6 =
  36. 36.8.1 × 2.8 =
  37. 37.9.8 × 3.4 =
  38. 38.0.93 × 3.3 =
  39. 39.0.79 × 1.5 =
  40. 40.2.5 × 0.14 =

Answer key

  1. 0.32
  2. 31.54
  3. 0.442
  4. 27.65
  5. 0.675
  6. 2.36
  7. 0.364
  8. 0.39
  9. 2.86
  10. 1.365
  11. 2.976
  12. 0.15
  13. 23.75
  14. 0.18
  15. 0.272
  16. 1.26
  17. 1.638
  18. 1.764
  19. 21.39
  20. 11.22
  21. 0.676
  22. 6.38
  23. 6.48
  24. 0.084
  25. 1.11
  26. 5.12
  27. 2.223
  28. 2.325
  29. 1.007
  30. 5.22
  31. 0.09
  32. 0.567
  33. 0.592
  34. 1.932
  35. 0.588
  36. 22.68
  37. 33.32
  38. 3.069
  39. 1.185
  40. 0.35

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