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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 991 · 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. 1.0.08 × 2.4 =
  2. 2.2.8 × 2.3 =
  3. 3.9.8 × 0.4 =
  4. 4.0.32 × 3.7 =
  5. 5.0.21 × 2.4 =
  6. 6.6.7 × 0.8 =
  7. 7.2.2 × 0.05 =
  8. 8.2.5 × 2.5 =
  9. 9.4.7 × 0.24 =
  10. 10.0.25 × 0.4 =
  11. 11.9.4 × 0.31 =
  12. 12.7.2 × 0.13 =
  13. 13.3.8 × 2.8 =
  14. 14.9.1 × 0.13 =
  15. 15.0.2 × 0.21 =
  16. 16.0.15 × 0.4 =
  17. 17.8.1 × 0.09 =
  18. 18.8.3 × 2.4 =
  19. 19.9.9 × 0.6 =
  20. 20.0.86 × 3.3 =
  21. 21.0.3 × 3.9 =
  22. 22.0.36 × 2.7 =
  23. 23.7.7 × 1.8 =
  24. 24.0.92 × 1.6 =
  25. 25.0.11 × 1.1 =
  26. 26.0.61 × 0.6 =
  27. 27.7.8 × 1.5 =
  28. 28.0.98 × 0.3 =
  29. 29.1.6 × 0.24 =
  30. 30.0.59 × 3.5 =
  31. 31.1.5 × 0.39 =
  32. 32.0.7 × 0.23 =
  33. 33.0.48 × 0.4 =
  34. 34.0.02 × 1.1 =
  35. 35.7.9 × 0.13 =
  36. 36.0.79 × 3.3 =
  37. 37.0.15 × 1.3 =
  38. 38.0.42 × 2.2 =
  39. 39.0.18 × 3.4 =
  40. 40.0.81 × 0.2 =

Answer key

  1. 0.192
  2. 6.44
  3. 3.92
  4. 1.184
  5. 0.504
  6. 5.36
  7. 0.11
  8. 6.25
  9. 1.128
  10. 0.1
  11. 2.914
  12. 0.936
  13. 10.64
  14. 1.183
  15. 0.042
  16. 0.06
  17. 0.729
  18. 19.92
  19. 5.94
  20. 2.838
  21. 1.17
  22. 0.972
  23. 13.86
  24. 1.472
  25. 0.121
  26. 0.366
  27. 11.7
  28. 0.294
  29. 0.384
  30. 2.065
  31. 0.585
  32. 0.161
  33. 0.192
  34. 0.022
  35. 1.027
  36. 2.607
  37. 0.195
  38. 0.924
  39. 0.612
  40. 0.162

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