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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 241 · 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. 1.7.1 × 1.9 =
  2. 2.0.28 × 2.1 =
  3. 3.7.1 × 1.9 =
  4. 4.7.8 × 0.7 =
  5. 5.7.9 × 1.7 =
  6. 6.9.8 × 0.36 =
  7. 7.0.61 × 3.7 =
  8. 8.8.2 × 0.33 =
  9. 9.2.7 × 3.3 =
  10. 10.0.79 × 3.2 =
  11. 11.8.7 × 0.17 =
  12. 12.4.7 × 0.06 =
  13. 13.8.8 × 0.9 =
  14. 14.2.1 × 1.5 =
  15. 15.0.95 × 1.6 =
  16. 16.9.7 × 2.9 =
  17. 17.0.32 × 3.4 =
  18. 18.0.6 × 0.7 =
  19. 19.0.48 × 1.2 =
  20. 20.4.5 × 0.29 =
  21. 21.5.3 × 0.31 =
  22. 22.8.4 × 0.29 =
  23. 23.5.1 × 0.26 =
  24. 24.0.68 × 1.2 =
  25. 25.0.49 × 2.2 =
  26. 26.7.1 × 2.2 =
  27. 27.4.9 × 2.6 =
  28. 28.8.5 × 0.11 =
  29. 29.7.9 × 0.36 =
  30. 30.0.73 × 3.7 =
  31. 31.8.4 × 0.32 =
  32. 32.0.21 × 1.5 =
  33. 33.0.6 × 0.19 =
  34. 34.0.61 × 3.9 =
  35. 35.5.8 × 1.5 =
  36. 36.0.62 × 3.7 =
  37. 37.4.4 × 0.35 =
  38. 38.1.3 × 0.31 =
  39. 39.0.34 × 0.4 =
  40. 40.5.1 × 0.9 =

Answer key

  1. 13.49
  2. 0.588
  3. 13.49
  4. 5.46
  5. 13.43
  6. 3.528
  7. 2.257
  8. 2.706
  9. 8.91
  10. 2.528
  11. 1.479
  12. 0.282
  13. 7.92
  14. 3.15
  15. 1.52
  16. 28.13
  17. 1.088
  18. 0.42
  19. 0.576
  20. 1.305
  21. 1.643
  22. 2.436
  23. 1.326
  24. 0.816
  25. 1.078
  26. 15.62
  27. 12.74
  28. 0.935
  29. 2.844
  30. 2.701
  31. 2.688
  32. 0.315
  33. 0.114
  34. 2.379
  35. 8.7
  36. 2.294
  37. 1.54
  38. 0.403
  39. 0.136
  40. 4.59

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