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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 880 · 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. 1.8.8 × 2.6 =
  2. 2.0.31 × 2.4 =
  3. 3.7.3 × 0.5 =
  4. 4.0.11 × 1.4 =
  5. 5.3.6 × 0.39 =
  6. 6.0.38 × 2.1 =
  7. 7.9.6 × 0.06 =
  8. 8.4.3 × 0.07 =
  9. 9.4.1 × 0.31 =
  10. 10.5.7 × 0.7 =
  11. 11.0.24 × 0.8 =
  12. 12.0.17 × 0.6 =
  13. 13.0.58 × 3.2 =
  14. 14.0.71 × 1.2 =
  15. 15.3.1 × 0.31 =
  16. 16.0.74 × 3.2 =
  17. 17.0.26 × 3.3 =
  18. 18.6.2 × 1.2 =
  19. 19.0.3 × 0.07 =
  20. 20.2.9 × 3.7 =
  21. 21.5.9 × 2.5 =
  22. 22.0.52 × 1.4 =
  23. 23.0.18 × 1.5 =
  24. 24.0.3 × 0.31 =
  25. 25.0.64 × 1.6 =
  26. 26.0.91 × 1.1 =
  27. 27.0.84 × 1.7 =
  28. 28.0.95 × 2.1 =
  29. 29.0.69 × 0.9 =
  30. 30.0.21 × 0.3 =
  31. 31.0.7 × 1.9 =
  32. 32.0.86 × 2.1 =
  33. 33.0.76 × 0.2 =
  34. 34.0.65 × 2.1 =
  35. 35.3.1 × 0.31 =
  36. 36.1.1 × 1.8 =
  37. 37.9.8 × 0.9 =
  38. 38.2.7 × 2.8 =
  39. 39.2.9 × 0.11 =
  40. 40.3.7 × 0.12 =

Answer key

  1. 22.88
  2. 0.744
  3. 3.65
  4. 0.154
  5. 1.404
  6. 0.798
  7. 0.576
  8. 0.301
  9. 1.271
  10. 3.99
  11. 0.192
  12. 0.102
  13. 1.856
  14. 0.852
  15. 0.961
  16. 2.368
  17. 0.858
  18. 7.44
  19. 0.021
  20. 10.73
  21. 14.75
  22. 0.728
  23. 0.27
  24. 0.093
  25. 1.024
  26. 1.001
  27. 1.428
  28. 1.995
  29. 0.621
  30. 0.063
  31. 1.33
  32. 1.806
  33. 0.152
  34. 1.365
  35. 0.961
  36. 1.98
  37. 8.82
  38. 7.56
  39. 0.319
  40. 0.444

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