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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 328 · 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. 1.9.1 × 1.4 =
  2. 2.0.47 × 2.8 =
  3. 3.1.1 × 3.1 =
  4. 4.0.05 × 1.9 =
  5. 5.0.22 × 3.3 =
  6. 6.9.3 × 0.06 =
  7. 7.9.9 × 0.8 =
  8. 8.4.2 × 0.9 =
  9. 9.0.99 × 3.7 =
  10. 10.5.1 × 2.6 =
  11. 11.0.51 × 0.6 =
  12. 12.0.47 × 1.4 =
  13. 13.5.9 × 2.2 =
  14. 14.5.9 × 0.8 =
  15. 15.0.42 × 3.3 =
  16. 16.0.83 × 2.1 =
  17. 17.7.5 × 0.5 =
  18. 18.0.62 × 0.6 =
  19. 19.5.8 × 0.03 =
  20. 20.0.8 × 0.34 =
  21. 21.5.4 × 0.3 =
  22. 22.4.3 × 3.1 =
  23. 23.2.1 × 1.1 =
  24. 24.5.1 × 2.2 =
  25. 25.0.32 × 0.4 =
  26. 26.4.1 × 0.05 =
  27. 27.0.51 × 0.4 =
  28. 28.9.8 × 0.36 =
  29. 29.0.67 × 2.4 =
  30. 30.0.27 × 3.7 =
  31. 31.0.4 × 0.9 =
  32. 32.0.96 × 2.7 =
  33. 33.6.6 × 0.11 =
  34. 34.7.7 × 1.2 =
  35. 35.4.1 × 0.33 =
  36. 36.4.5 × 0.33 =
  37. 37.9.8 × 1.7 =
  38. 38.0.87 × 0.8 =
  39. 39.6.6 × 0.6 =
  40. 40.0.9 × 1.5 =

Answer key

  1. 12.74
  2. 1.316
  3. 3.41
  4. 0.095
  5. 0.726
  6. 0.558
  7. 7.92
  8. 3.78
  9. 3.663
  10. 13.26
  11. 0.306
  12. 0.658
  13. 12.98
  14. 4.72
  15. 1.386
  16. 1.743
  17. 3.75
  18. 0.372
  19. 0.174
  20. 0.272
  21. 1.62
  22. 13.33
  23. 2.31
  24. 11.22
  25. 0.128
  26. 0.205
  27. 0.204
  28. 3.528
  29. 1.608
  30. 0.999
  31. 0.36
  32. 2.592
  33. 0.726
  34. 9.24
  35. 1.353
  36. 1.485
  37. 16.66
  38. 0.696
  39. 3.96
  40. 1.35

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