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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 178 · 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. 1.0.86 × 2.4 =
  2. 2.0.56 × 2.1 =
  3. 3.1.9 × 0.37 =
  4. 4.5.7 × 3.1 =
  5. 5.0.51 × 0.7 =
  6. 6.0.64 × 0.5 =
  7. 7.3.9 × 1.3 =
  8. 8.0.49 × 3.3 =
  9. 9.4.8 × 0.06 =
  10. 10.9.5 × 0.8 =
  11. 11.0.96 × 0.4 =
  12. 12.0.46 × 0.4 =
  13. 13.1.4 × 0.08 =
  14. 14.0.5 × 0.36 =
  15. 15.0.46 × 2.8 =
  16. 16.2.2 × 2.4 =
  17. 17.0.15 × 2.3 =
  18. 18.3.4 × 0.03 =
  19. 19.0.84 × 2.9 =
  20. 20.6.5 × 0.23 =
  21. 21.0.79 × 0.5 =
  22. 22.8.7 × 0.28 =
  23. 23.0.09 × 3.4 =
  24. 24.0.33 × 1.1 =
  25. 25.0.46 × 2.7 =
  26. 26.8.5 × 2.1 =
  27. 27.0.21 × 0.4 =
  28. 28.0.78 × 2.5 =
  29. 29.0.5 × 0.37 =
  30. 30.0.45 × 2.8 =
  31. 31.0.71 × 2.8 =
  32. 32.0.08 × 3.3 =
  33. 33.0.46 × 2.6 =
  34. 34.0.54 × 3.1 =
  35. 35.9.8 × 0.26 =
  36. 36.0.18 × 1.9 =
  37. 37.0.41 × 2.8 =
  38. 38.8.6 × 1.2 =
  39. 39.0.94 × 3.3 =
  40. 40.0.5 × 0.6 =

Answer key

  1. 2.064
  2. 1.176
  3. 0.703
  4. 17.67
  5. 0.357
  6. 0.32
  7. 5.07
  8. 1.617
  9. 0.288
  10. 7.6
  11. 0.384
  12. 0.184
  13. 0.112
  14. 0.18
  15. 1.288
  16. 5.28
  17. 0.345
  18. 0.102
  19. 2.436
  20. 1.495
  21. 0.395
  22. 2.436
  23. 0.306
  24. 0.363
  25. 1.242
  26. 17.85
  27. 0.084
  28. 1.95
  29. 0.185
  30. 1.26
  31. 1.988
  32. 0.264
  33. 1.196
  34. 1.674
  35. 2.548
  36. 0.342
  37. 1.148
  38. 10.32
  39. 3.102
  40. 0.3

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