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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 309 · 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. 1.0.12 × 2.8 =
  2. 2.0.27 × 3.2 =
  3. 3.0.7 × 2.7 =
  4. 4.0.88 × 3.5 =
  5. 5.3.8 × 3.7 =
  6. 6.0.82 × 1.8 =
  7. 7.6.8 × 3.4 =
  8. 8.0.55 × 0.3 =
  9. 9.4.1 × 0.17 =
  10. 10.1.6 × 0.18 =
  11. 11.0.85 × 0.5 =
  12. 12.0.41 × 0.2 =
  13. 13.0.55 × 1.1 =
  14. 14.0.62 × 1.9 =
  15. 15.0.02 × 1.1 =
  16. 16.0.31 × 3.8 =
  17. 17.0.73 × 1.2 =
  18. 18.0.18 × 0.2 =
  19. 19.0.25 × 0.6 =
  20. 20.0.96 × 3.4 =
  21. 21.6.3 × 0.11 =
  22. 22.0.36 × 0.4 =
  23. 23.0.29 × 1.4 =
  24. 24.3.5 × 0.15 =
  25. 25.0.62 × 1.4 =
  26. 26.2.5 × 3.6 =
  27. 27.0.19 × 3.9 =
  28. 28.5.4 × 1.2 =
  29. 29.0.71 × 1.1 =
  30. 30.0.36 × 1.5 =
  31. 31.0.29 × 1.4 =
  32. 32.6.3 × 0.7 =
  33. 33.2.2 × 0.9 =
  34. 34.0.18 × 3.6 =
  35. 35.4.1 × 0.2 =
  36. 36.0.42 × 1.1 =
  37. 37.8.9 × 0.08 =
  38. 38.4.1 × 2.6 =
  39. 39.0.66 × 3.6 =
  40. 40.5.1 × 1.1 =

Answer key

  1. 0.336
  2. 0.864
  3. 1.89
  4. 3.08
  5. 14.06
  6. 1.476
  7. 23.12
  8. 0.165
  9. 0.697
  10. 0.288
  11. 0.425
  12. 0.082
  13. 0.605
  14. 1.178
  15. 0.022
  16. 1.178
  17. 0.876
  18. 0.036
  19. 0.15
  20. 3.264
  21. 0.693
  22. 0.144
  23. 0.406
  24. 0.525
  25. 0.868
  26. 9
  27. 0.741
  28. 6.48
  29. 0.781
  30. 0.54
  31. 0.406
  32. 4.41
  33. 1.98
  34. 0.648
  35. 0.82
  36. 0.462
  37. 0.712
  38. 10.66
  39. 2.376
  40. 5.61

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