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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 870 · 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. 1.1.2 × 0.4 =
  2. 2.8.4 × 0.33 =
  3. 3.0.7 × 0.02 =
  4. 4.0.2 × 0.2 =
  5. 5.3.3 × 3.1 =
  6. 6.0.02 × 2.9 =
  7. 7.0.03 × 2.3 =
  8. 8.7.1 × 0.27 =
  9. 9.0.68 × 0.3 =
  10. 10.7.2 × 0.13 =
  11. 11.6.2 × 0.37 =
  12. 12.9.3 × 0.5 =
  13. 13.0.54 × 3.2 =
  14. 14.4.5 × 1.1 =
  15. 15.0.31 × 3.5 =
  16. 16.0.44 × 3.1 =
  17. 17.8.2 × 0.34 =
  18. 18.0.68 × 0.2 =
  19. 19.5.1 × 1.8 =
  20. 20.0.41 × 0.5 =
  21. 21.6.3 × 0.27 =
  22. 22.0.38 × 3.6 =
  23. 23.0.7 × 0.6 =
  24. 24.0.3 × 0.11 =
  25. 25.1.9 × 1.9 =
  26. 26.0.48 × 0.6 =
  27. 27.4.3 × 2.3 =
  28. 28.0.36 × 1.1 =
  29. 29.3.8 × 1.2 =
  30. 30.2.6 × 3.5 =
  31. 31.6.6 × 0.22 =
  32. 32.7.4 × 0.9 =
  33. 33.0.9 × 0.5 =
  34. 34.9.4 × 2.1 =
  35. 35.0.62 × 0.9 =
  36. 36.1.4 × 3.5 =
  37. 37.5.7 × 0.34 =
  38. 38.7.1 × 0.06 =
  39. 39.0.86 × 0.7 =
  40. 40.1.5 × 2.3 =

Answer key

  1. 0.48
  2. 2.772
  3. 0.014
  4. 0.04
  5. 10.23
  6. 0.058
  7. 0.069
  8. 1.917
  9. 0.204
  10. 0.936
  11. 2.294
  12. 4.65
  13. 1.728
  14. 4.95
  15. 1.085
  16. 1.364
  17. 2.788
  18. 0.136
  19. 9.18
  20. 0.205
  21. 1.701
  22. 1.368
  23. 0.42
  24. 0.033
  25. 3.61
  26. 0.288
  27. 9.89
  28. 0.396
  29. 4.56
  30. 9.1
  31. 1.452
  32. 6.66
  33. 0.45
  34. 19.74
  35. 0.558
  36. 4.9
  37. 1.938
  38. 0.426
  39. 0.602
  40. 3.45

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