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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 761 · 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. 1.9.8 × 3.8 =
  2. 2.0.21 × 1.1 =
  3. 3.0.26 × 1.4 =
  4. 4.0.16 × 0.8 =
  5. 5.0.95 × 0.5 =
  6. 6.9.8 × 2.7 =
  7. 7.0.68 × 1.1 =
  8. 8.0.22 × 1.2 =
  9. 9.0.52 × 2.1 =
  10. 10.0.28 × 0.5 =
  11. 11.0.86 × 2.2 =
  12. 12.0.75 × 1.1 =
  13. 13.0.37 × 2.8 =
  14. 14.3.3 × 0.08 =
  15. 15.9.7 × 1.3 =
  16. 16.0.22 × 3.6 =
  17. 17.2.5 × 3.8 =
  18. 18.0.56 × 3.8 =
  19. 19.0.5 × 0.06 =
  20. 20.8.4 × 0.35 =
  21. 21.0.52 × 2.9 =
  22. 22.0.28 × 3.5 =
  23. 23.0.45 × 1.5 =
  24. 24.0.81 × 3.6 =
  25. 25.0.12 × 1.3 =
  26. 26.0.05 × 3.1 =
  27. 27.0.57 × 1.2 =
  28. 28.0.27 × 1.8 =
  29. 29.2.5 × 0.4 =
  30. 30.0.9 × 0.09 =
  31. 31.0.13 × 0.3 =
  32. 32.2.1 × 1.8 =
  33. 33.0.03 × 0.9 =
  34. 34.0.43 × 2.2 =
  35. 35.0.39 × 1.5 =
  36. 36.3.3 × 0.26 =
  37. 37.0.61 × 3.2 =
  38. 38.0.7 × 1.6 =
  39. 39.0.46 × 1.5 =
  40. 40.9.2 × 3.9 =

Answer key

  1. 37.24
  2. 0.231
  3. 0.364
  4. 0.128
  5. 0.475
  6. 26.46
  7. 0.748
  8. 0.264
  9. 1.092
  10. 0.14
  11. 1.892
  12. 0.825
  13. 1.036
  14. 0.264
  15. 12.61
  16. 0.792
  17. 9.5
  18. 2.128
  19. 0.03
  20. 2.94
  21. 1.508
  22. 0.98
  23. 0.675
  24. 2.916
  25. 0.156
  26. 0.155
  27. 0.684
  28. 0.486
  29. 1
  30. 0.081
  31. 0.039
  32. 3.78
  33. 0.027
  34. 0.946
  35. 0.585
  36. 0.858
  37. 1.952
  38. 1.12
  39. 0.69
  40. 35.88

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