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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 887 · 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. 1.0.94 × 3.7 =
  2. 2.2.7 × 0.7 =
  3. 3.2.1 × 1.7 =
  4. 4.0.81 × 1.9 =
  5. 5.9.6 × 1.1 =
  6. 6.7.6 × 3.5 =
  7. 7.1.9 × 1.7 =
  8. 8.0.7 × 0.04 =
  9. 9.3.1 × 1.1 =
  10. 10.0.91 × 1.3 =
  11. 11.0.91 × 2.8 =
  12. 12.0.15 × 0.5 =
  13. 13.0.97 × 0.4 =
  14. 14.0.56 × 0.8 =
  15. 15.0.62 × 0.5 =
  16. 16.0.05 × 3.2 =
  17. 17.0.7 × 3.5 =
  18. 18.1.9 × 3.7 =
  19. 19.3.1 × 0.37 =
  20. 20.8.5 × 0.06 =
  21. 21.9.7 × 3.2 =
  22. 22.0.48 × 0.9 =
  23. 23.0.33 × 3.1 =
  24. 24.0.59 × 2.1 =
  25. 25.0.29 × 3.1 =
  26. 26.7.1 × 0.19 =
  27. 27.0.29 × 2.1 =
  28. 28.0.76 × 1.1 =
  29. 29.7.1 × 3.9 =
  30. 30.0.09 × 3.7 =
  31. 31.0.2 × 0.11 =
  32. 32.0.45 × 3.5 =
  33. 33.0.02 × 0.9 =
  34. 34.0.81 × 2.2 =
  35. 35.2.2 × 2.1 =
  36. 36.0.64 × 2.2 =
  37. 37.3.1 × 0.21 =
  38. 38.1.5 × 0.11 =
  39. 39.6.3 × 2.1 =
  40. 40.0.25 × 1.5 =

Answer key

  1. 3.478
  2. 1.89
  3. 3.57
  4. 1.539
  5. 10.56
  6. 26.6
  7. 3.23
  8. 0.028
  9. 3.41
  10. 1.183
  11. 2.548
  12. 0.075
  13. 0.388
  14. 0.448
  15. 0.31
  16. 0.16
  17. 2.45
  18. 7.03
  19. 1.147
  20. 0.51
  21. 31.04
  22. 0.432
  23. 1.023
  24. 1.239
  25. 0.899
  26. 1.349
  27. 0.609
  28. 0.836
  29. 27.69
  30. 0.333
  31. 0.022
  32. 1.575
  33. 0.018
  34. 1.782
  35. 4.62
  36. 1.408
  37. 0.651
  38. 0.165
  39. 13.23
  40. 0.375

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