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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 159 · 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. 1.3.1 × 0.6 =
  2. 2.0.4 × 1.4 =
  3. 3.4.9 × 0.7 =
  4. 4.7.5 × 2.1 =
  5. 5.8.4 × 3.1 =
  6. 6.4.9 × 0.31 =
  7. 7.1.3 × 1.5 =
  8. 8.2.1 × 3.4 =
  9. 9.0.77 × 0.3 =
  10. 10.4.8 × 0.29 =
  11. 11.0.63 × 1.7 =
  12. 12.0.33 × 0.4 =
  13. 13.1.8 × 0.09 =
  14. 14.8.1 × 1.4 =
  15. 15.0.22 × 1.1 =
  16. 16.0.95 × 0.3 =
  17. 17.0.61 × 2.1 =
  18. 18.1.6 × 0.08 =
  19. 19.4.5 × 0.13 =
  20. 20.7.9 × 0.35 =
  21. 21.0.06 × 0.4 =
  22. 22.0.41 × 2.1 =
  23. 23.4.2 × 0.4 =
  24. 24.0.4 × 1.9 =
  25. 25.0.23 × 1.1 =
  26. 26.0.06 × 2.6 =
  27. 27.0.18 × 1.5 =
  28. 28.8.6 × 3.2 =
  29. 29.5.3 × 0.27 =
  30. 30.0.86 × 2.5 =
  31. 31.0.5 × 0.4 =
  32. 32.0.7 × 0.04 =
  33. 33.0.08 × 3.3 =
  34. 34.6.3 × 0.12 =
  35. 35.9.2 × 0.02 =
  36. 36.0.74 × 3.1 =
  37. 37.0.41 × 3.1 =
  38. 38.9.9 × 1.9 =
  39. 39.0.11 × 2.5 =
  40. 40.9.6 × 0.06 =

Answer key

  1. 1.86
  2. 0.56
  3. 3.43
  4. 15.75
  5. 26.04
  6. 1.519
  7. 1.95
  8. 7.14
  9. 0.231
  10. 1.392
  11. 1.071
  12. 0.132
  13. 0.162
  14. 11.34
  15. 0.242
  16. 0.285
  17. 1.281
  18. 0.128
  19. 0.585
  20. 2.765
  21. 0.024
  22. 0.861
  23. 1.68
  24. 0.76
  25. 0.253
  26. 0.156
  27. 0.27
  28. 27.52
  29. 1.431
  30. 2.15
  31. 0.2
  32. 0.028
  33. 0.264
  34. 0.756
  35. 0.184
  36. 2.294
  37. 1.271
  38. 18.81
  39. 0.275
  40. 0.576

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