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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 912 · 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. 1.0.82 × 1.5 =
  2. 2.0.95 × 0.6 =
  3. 3.0.29 × 1.2 =
  4. 4.4.1 × 1.7 =
  5. 5.0.79 × 2.8 =
  6. 6.0.2 × 2.9 =
  7. 7.2.3 × 0.4 =
  8. 8.9.8 × 0.9 =
  9. 9.0.45 × 1.1 =
  10. 10.2.5 × 0.17 =
  11. 11.0.41 × 1.4 =
  12. 12.0.6 × 3.9 =
  13. 13.0.73 × 0.7 =
  14. 14.0.2 × 0.5 =
  15. 15.4.1 × 0.27 =
  16. 16.3.1 × 0.39 =
  17. 17.7.1 × 2.9 =
  18. 18.7.8 × 1.1 =
  19. 19.0.03 × 1.7 =
  20. 20.6.7 × 0.02 =
  21. 21.0.87 × 0.8 =
  22. 22.0.39 × 0.4 =
  23. 23.0.25 × 1.2 =
  24. 24.1.2 × 0.07 =
  25. 25.0.26 × 1.5 =
  26. 26.0.5 × 2.6 =
  27. 27.0.12 × 1.9 =
  28. 28.0.2 × 2.7 =
  29. 29.0.54 × 2.3 =
  30. 30.0.85 × 3.1 =
  31. 31.0.78 × 3.6 =
  32. 32.7.9 × 0.27 =
  33. 33.9.6 × 0.32 =
  34. 34.0.39 × 0.2 =
  35. 35.6.3 × 1.6 =
  36. 36.0.26 × 1.1 =
  37. 37.6.4 × 0.8 =
  38. 38.7.6 × 2.1 =
  39. 39.1.3 × 3.8 =
  40. 40.0.05 × 1.1 =

Answer key

  1. 1.23
  2. 0.57
  3. 0.348
  4. 6.97
  5. 2.212
  6. 0.58
  7. 0.92
  8. 8.82
  9. 0.495
  10. 0.425
  11. 0.574
  12. 2.34
  13. 0.511
  14. 0.1
  15. 1.107
  16. 1.209
  17. 20.59
  18. 8.58
  19. 0.051
  20. 0.134
  21. 0.696
  22. 0.156
  23. 0.3
  24. 0.084
  25. 0.39
  26. 1.3
  27. 0.228
  28. 0.54
  29. 1.242
  30. 2.635
  31. 2.808
  32. 2.133
  33. 3.072
  34. 0.078
  35. 10.08
  36. 0.286
  37. 5.12
  38. 15.96
  39. 4.94
  40. 0.055

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