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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 207 · 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. 1.0.07 × 2.8 =
  2. 2.0.47 × 0.5 =
  3. 3.4.6 × 0.29 =
  4. 4.9.5 × 0.5 =
  5. 5.0.41 × 1.1 =
  6. 6.0.67 × 0.8 =
  7. 7.0.09 × 1.4 =
  8. 8.1.9 × 3.9 =
  9. 9.5.3 × 2.1 =
  10. 10.1.1 × 1.3 =
  11. 11.0.11 × 1.6 =
  12. 12.9.2 × 1.1 =
  13. 13.0.2 × 1.6 =
  14. 14.9.8 × 3.8 =
  15. 15.2.2 × 2.9 =
  16. 16.2.4 × 1.1 =
  17. 17.5.4 × 3.4 =
  18. 18.1.6 × 0.26 =
  19. 19.5.3 × 1.5 =
  20. 20.8.7 × 2.4 =
  21. 21.0.95 × 2.8 =
  22. 22.0.52 × 2.8 =
  23. 23.4.1 × 1.2 =
  24. 24.0.89 × 2.4 =
  25. 25.4.1 × 0.17 =
  26. 26.0.29 × 2.4 =
  27. 27.2.6 × 0.11 =
  28. 28.0.64 × 2.9 =
  29. 29.8.5 × 1.3 =
  30. 30.4.1 × 1.3 =
  31. 31.0.18 × 0.5 =
  32. 32.2.7 × 0.12 =
  33. 33.1.7 × 0.31 =
  34. 34.7.8 × 1.9 =
  35. 35.0.9 × 0.39 =
  36. 36.0.21 × 3.2 =
  37. 37.0.21 × 3.5 =
  38. 38.2.1 × 2.6 =
  39. 39.0.41 × 2.1 =
  40. 40.2.1 × 0.6 =

Answer key

  1. 0.196
  2. 0.235
  3. 1.334
  4. 4.75
  5. 0.451
  6. 0.536
  7. 0.126
  8. 7.41
  9. 11.13
  10. 1.43
  11. 0.176
  12. 10.12
  13. 0.32
  14. 37.24
  15. 6.38
  16. 2.64
  17. 18.36
  18. 0.416
  19. 7.95
  20. 20.88
  21. 2.66
  22. 1.456
  23. 4.92
  24. 2.136
  25. 0.697
  26. 0.696
  27. 0.286
  28. 1.856
  29. 11.05
  30. 5.33
  31. 0.09
  32. 0.324
  33. 0.527
  34. 14.82
  35. 0.351
  36. 0.672
  37. 0.735
  38. 5.46
  39. 0.861
  40. 1.26

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