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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 581 · 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. 1.0.81 × 0.2 =
  2. 2.0.02 × 2.1 =
  3. 3.0.2 × 0.27 =
  4. 4.0.22 × 3.5 =
  5. 5.0.57 × 3.1 =
  6. 6.0.11 × 2.9 =
  7. 7.0.53 × 2.1 =
  8. 8.8.3 × 1.8 =
  9. 9.2.2 × 0.11 =
  10. 10.0.05 × 1.1 =
  11. 11.9.8 × 0.7 =
  12. 12.8.7 × 0.24 =
  13. 13.7.9 × 0.3 =
  14. 14.0.34 × 2.7 =
  15. 15.0.14 × 3.4 =
  16. 16.1.1 × 0.32 =
  17. 17.7.8 × 0.13 =
  18. 18.9.9 × 1.9 =
  19. 19.0.79 × 3.1 =
  20. 20.8.1 × 0.04 =
  21. 21.0.65 × 2.5 =
  22. 22.2.4 × 0.04 =
  23. 23.0.21 × 2.5 =
  24. 24.7.6 × 0.04 =
  25. 25.7.1 × 0.06 =
  26. 26.0.79 × 1.3 =
  27. 27.5.6 × 2.4 =
  28. 28.4.2 × 0.08 =
  29. 29.0.9 × 1.1 =
  30. 30.5.6 × 0.8 =
  31. 31.0.81 × 3.4 =
  32. 32.0.38 × 1.3 =
  33. 33.6.2 × 0.36 =
  34. 34.4.6 × 0.6 =
  35. 35.5.7 × 0.08 =
  36. 36.2.2 × 1.5 =
  37. 37.2.1 × 3.3 =
  38. 38.0.51 × 2.8 =
  39. 39.2.3 × 3.3 =
  40. 40.4.8 × 0.34 =

Answer key

  1. 0.162
  2. 0.042
  3. 0.054
  4. 0.77
  5. 1.767
  6. 0.319
  7. 1.113
  8. 14.94
  9. 0.242
  10. 0.055
  11. 6.86
  12. 2.088
  13. 2.37
  14. 0.918
  15. 0.476
  16. 0.352
  17. 1.014
  18. 18.81
  19. 2.449
  20. 0.324
  21. 1.625
  22. 0.096
  23. 0.525
  24. 0.304
  25. 0.426
  26. 1.027
  27. 13.44
  28. 0.336
  29. 0.99
  30. 4.48
  31. 2.754
  32. 0.494
  33. 2.232
  34. 2.76
  35. 0.456
  36. 3.3
  37. 6.93
  38. 1.428
  39. 7.59
  40. 1.632

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