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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 475 · 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. 1.0.61 × 0.5 =
  2. 2.9.6 × 0.5 =
  3. 3.6.1 × 1.1 =
  4. 4.0.05 × 3.1 =
  5. 5.8.9 × 0.25 =
  6. 6.8.1 × 0.19 =
  7. 7.0.76 × 3.1 =
  8. 8.0.17 × 2.7 =
  9. 9.8.3 × 2.6 =
  10. 10.3.9 × 2.1 =
  11. 11.0.61 × 1.4 =
  12. 12.1.7 × 0.37 =
  13. 13.7.9 × 1.1 =
  14. 14.0.05 × 1.1 =
  15. 15.0.57 × 2.3 =
  16. 16.1.3 × 1.1 =
  17. 17.0.08 × 0.9 =
  18. 18.0.76 × 1.8 =
  19. 19.0.14 × 3.1 =
  20. 20.6.1 × 1.3 =
  21. 21.0.35 × 3.6 =
  22. 22.0.05 × 2.1 =
  23. 23.0.99 × 1.1 =
  24. 24.0.83 × 1.1 =
  25. 25.7.1 × 3.7 =
  26. 26.0.13 × 0.7 =
  27. 27.0.62 × 3.5 =
  28. 28.0.68 × 3.8 =
  29. 29.1.8 × 0.5 =
  30. 30.8.7 × 3.8 =
  31. 31.8.5 × 0.7 =
  32. 32.4.3 × 3.8 =
  33. 33.0.2 × 0.6 =
  34. 34.7.3 × 2.6 =
  35. 35.4.2 × 0.21 =
  36. 36.0.25 × 1.7 =
  37. 37.0.42 × 1.9 =
  38. 38.2.5 × 0.14 =
  39. 39.0.02 × 1.6 =
  40. 40.0.2 × 2.7 =

Answer key

  1. 0.305
  2. 4.8
  3. 6.71
  4. 0.155
  5. 2.225
  6. 1.539
  7. 2.356
  8. 0.459
  9. 21.58
  10. 8.19
  11. 0.854
  12. 0.629
  13. 8.69
  14. 0.055
  15. 1.311
  16. 1.43
  17. 0.072
  18. 1.368
  19. 0.434
  20. 7.93
  21. 1.26
  22. 0.105
  23. 1.089
  24. 0.913
  25. 26.27
  26. 0.091
  27. 2.17
  28. 2.584
  29. 0.9
  30. 33.06
  31. 5.95
  32. 16.34
  33. 0.12
  34. 18.98
  35. 0.882
  36. 0.425
  37. 0.798
  38. 0.35
  39. 0.032
  40. 0.54

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