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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 432 · 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. 1.0.43 × 1.7 =
  2. 2.2.6 × 2.4 =
  3. 3.5.1 × 0.12 =
  4. 4.0.09 × 2.6 =
  5. 5.4.3 × 0.36 =
  6. 6.0.71 × 0.5 =
  7. 7.5.4 × 0.27 =
  8. 8.0.11 × 2.1 =
  9. 9.6.1 × 1.2 =
  10. 10.7.8 × 1.5 =
  11. 11.0.32 × 2.5 =
  12. 12.5.2 × 0.23 =
  13. 13.0.84 × 2.2 =
  14. 14.4.1 × 3.6 =
  15. 15.0.85 × 2.6 =
  16. 16.0.24 × 2.7 =
  17. 17.4.3 × 1.1 =
  18. 18.0.79 × 1.2 =
  19. 19.0.44 × 0.9 =
  20. 20.0.35 × 0.6 =
  21. 21.5.6 × 0.9 =
  22. 22.0.79 × 1.8 =
  23. 23.8.5 × 0.11 =
  24. 24.5.5 × 0.37 =
  25. 25.0.59 × 1.5 =
  26. 26.4.1 × 0.23 =
  27. 27.0.13 × 0.3 =
  28. 28.4.5 × 1.9 =
  29. 29.1.7 × 0.31 =
  30. 30.4.6 × 0.21 =
  31. 31.0.8 × 3.3 =
  32. 32.7.3 × 0.13 =
  33. 33.3.2 × 3.5 =
  34. 34.9.5 × 0.4 =
  35. 35.1.6 × 0.36 =
  36. 36.4.7 × 2.4 =
  37. 37.0.12 × 1.5 =
  38. 38.0.22 × 2.9 =
  39. 39.0.64 × 0.9 =
  40. 40.3.3 × 1.5 =

Answer key

  1. 0.731
  2. 6.24
  3. 0.612
  4. 0.234
  5. 1.548
  6. 0.355
  7. 1.458
  8. 0.231
  9. 7.32
  10. 11.7
  11. 0.8
  12. 1.196
  13. 1.848
  14. 14.76
  15. 2.21
  16. 0.648
  17. 4.73
  18. 0.948
  19. 0.396
  20. 0.21
  21. 5.04
  22. 1.422
  23. 0.935
  24. 2.035
  25. 0.885
  26. 0.943
  27. 0.039
  28. 8.55
  29. 0.527
  30. 0.966
  31. 2.64
  32. 0.949
  33. 11.2
  34. 3.8
  35. 0.576
  36. 11.28
  37. 0.18
  38. 0.638
  39. 0.576
  40. 4.95

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