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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 682 · 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. 1.0.86 × 3.4 =
  2. 2.2.2 × 0.31 =
  3. 3.6.8 × 0.2 =
  4. 4.7.2 × 0.03 =
  5. 5.0.22 × 1.1 =
  6. 6.2.1 × 1.9 =
  7. 7.0.8 × 2.6 =
  8. 8.0.18 × 3.9 =
  9. 9.0.31 × 2.4 =
  10. 10.0.38 × 3.7 =
  11. 11.0.05 × 1.1 =
  12. 12.0.25 × 1.2 =
  13. 13.5.2 × 0.37 =
  14. 14.0.23 × 0.8 =
  15. 15.2.9 × 0.07 =
  16. 16.0.78 × 1.7 =
  17. 17.0.71 × 1.4 =
  18. 18.0.17 × 3.1 =
  19. 19.0.11 × 1.9 =
  20. 20.2.7 × 0.8 =
  21. 21.7.2 × 2.9 =
  22. 22.4.1 × 0.13 =
  23. 23.0.39 × 3.1 =
  24. 24.0.12 × 2.2 =
  25. 25.0.88 × 0.3 =
  26. 26.0.42 × 2.7 =
  27. 27.0.25 × 1.4 =
  28. 28.0.65 × 0.4 =
  29. 29.6.8 × 0.16 =
  30. 30.4.5 × 1.9 =
  31. 31.8.1 × 2.8 =
  32. 32.0.42 × 0.4 =
  33. 33.0.12 × 3.1 =
  34. 34.4.1 × 2.2 =
  35. 35.4.1 × 0.26 =
  36. 36.3.9 × 0.8 =
  37. 37.0.4 × 3.5 =
  38. 38.0.24 × 3.8 =
  39. 39.0.71 × 2.2 =
  40. 40.1.6 × 3.7 =

Answer key

  1. 2.924
  2. 0.682
  3. 1.36
  4. 0.216
  5. 0.242
  6. 3.99
  7. 2.08
  8. 0.702
  9. 0.744
  10. 1.406
  11. 0.055
  12. 0.3
  13. 1.924
  14. 0.184
  15. 0.203
  16. 1.326
  17. 0.994
  18. 0.527
  19. 0.209
  20. 2.16
  21. 20.88
  22. 0.533
  23. 1.209
  24. 0.264
  25. 0.264
  26. 1.134
  27. 0.35
  28. 0.26
  29. 1.088
  30. 8.55
  31. 22.68
  32. 0.168
  33. 0.372
  34. 9.02
  35. 1.066
  36. 3.12
  37. 1.4
  38. 0.912
  39. 1.562
  40. 5.92

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