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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 923 · 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. 1.0.35 × 3.5 =
  2. 2.1.5 × 0.11 =
  3. 3.3.5 × 3.7 =
  4. 4.0.91 × 0.8 =
  5. 5.0.12 × 3.1 =
  6. 6.0.16 × 1.3 =
  7. 7.8.8 × 3.7 =
  8. 8.2.3 × 2.4 =
  9. 9.0.27 × 3.1 =
  10. 10.0.9 × 1.1 =
  11. 11.0.88 × 2.1 =
  12. 12.9.4 × 0.5 =
  13. 13.0.27 × 1.1 =
  14. 14.9.1 × 0.13 =
  15. 15.5.5 × 0.11 =
  16. 16.0.12 × 2.6 =
  17. 17.0.06 × 2.8 =
  18. 18.0.3 × 3.8 =
  19. 19.2.7 × 0.29 =
  20. 20.0.19 × 2.3 =
  21. 21.0.85 × 3.4 =
  22. 22.0.51 × 3.7 =
  23. 23.1.7 × 0.13 =
  24. 24.0.06 × 1.1 =
  25. 25.6.7 × 2.1 =
  26. 26.5.4 × 2.4 =
  27. 27.0.11 × 3.6 =
  28. 28.5.8 × 0.11 =
  29. 29.0.93 × 1.1 =
  30. 30.0.68 × 3.1 =
  31. 31.0.88 × 3.1 =
  32. 32.0.74 × 1.8 =
  33. 33.0.74 × 0.3 =
  34. 34.5.6 × 1.4 =
  35. 35.0.16 × 1.2 =
  36. 36.0.35 × 3.1 =
  37. 37.4.9 × 1.1 =
  38. 38.0.43 × 0.8 =
  39. 39.8.2 × 0.16 =
  40. 40.6.5 × 1.1 =

Answer key

  1. 1.225
  2. 0.165
  3. 12.95
  4. 0.728
  5. 0.372
  6. 0.208
  7. 32.56
  8. 5.52
  9. 0.837
  10. 0.99
  11. 1.848
  12. 4.7
  13. 0.297
  14. 1.183
  15. 0.605
  16. 0.312
  17. 0.168
  18. 1.14
  19. 0.783
  20. 0.437
  21. 2.89
  22. 1.887
  23. 0.221
  24. 0.066
  25. 14.07
  26. 12.96
  27. 0.396
  28. 0.638
  29. 1.023
  30. 2.108
  31. 2.728
  32. 1.332
  33. 0.222
  34. 7.84
  35. 0.192
  36. 1.085
  37. 5.39
  38. 0.344
  39. 1.312
  40. 7.15

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