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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 607 · 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. 1.4.7 × 3.7 =
  2. 2.0.27 × 2.7 =
  3. 3.0.57 × 2.1 =
  4. 4.0.66 × 1.9 =
  5. 5.9.6 × 0.38 =
  6. 6.3.2 × 3.8 =
  7. 7.0.27 × 3.1 =
  8. 8.0.09 × 0.9 =
  9. 9.0.71 × 3.9 =
  10. 10.4.4 × 0.31 =
  11. 11.9.4 × 1.1 =
  12. 12.5.7 × 2.9 =
  13. 13.0.14 × 1.1 =
  14. 14.0.11 × 1.8 =
  15. 15.8.5 × 0.5 =
  16. 16.0.18 × 1.7 =
  17. 17.4.1 × 2.1 =
  18. 18.0.27 × 2.1 =
  19. 19.0.61 × 3.2 =
  20. 20.0.56 × 0.4 =
  21. 21.0.17 × 2.6 =
  22. 22.0.08 × 3.1 =
  23. 23.8.1 × 3.4 =
  24. 24.0.56 × 1.5 =
  25. 25.2.4 × 0.07 =
  26. 26.6.7 × 0.06 =
  27. 27.0.6 × 0.31 =
  28. 28.1.9 × 3.7 =
  29. 29.4.6 × 2.7 =
  30. 30.0.26 × 0.5 =
  31. 31.0.81 × 1.2 =
  32. 32.0.96 × 0.6 =
  33. 33.0.11 × 2.4 =
  34. 34.0.21 × 3.7 =
  35. 35.2.1 × 0.22 =
  36. 36.6.5 × 2.4 =
  37. 37.0.05 × 0.9 =
  38. 38.0.18 × 2.3 =
  39. 39.7.5 × 0.32 =
  40. 40.0.5 × 0.03 =

Answer key

  1. 17.39
  2. 0.729
  3. 1.197
  4. 1.254
  5. 3.648
  6. 12.16
  7. 0.837
  8. 0.081
  9. 2.769
  10. 1.364
  11. 10.34
  12. 16.53
  13. 0.154
  14. 0.198
  15. 4.25
  16. 0.306
  17. 8.61
  18. 0.567
  19. 1.952
  20. 0.224
  21. 0.442
  22. 0.248
  23. 27.54
  24. 0.84
  25. 0.168
  26. 0.402
  27. 0.186
  28. 7.03
  29. 12.42
  30. 0.13
  31. 0.972
  32. 0.576
  33. 0.264
  34. 0.777
  35. 0.462
  36. 15.6
  37. 0.045
  38. 0.414
  39. 2.4
  40. 0.015

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