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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 517 · 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. 1.0.69 × 3.3 =
  2. 2.1.1 × 0.02 =
  3. 3.6.9 × 2.6 =
  4. 4.2.4 × 2.1 =
  5. 5.6.1 × 0.37 =
  6. 6.7.3 × 2.4 =
  7. 7.0.14 × 0.9 =
  8. 8.3.5 × 0.29 =
  9. 9.2.1 × 0.13 =
  10. 10.0.09 × 1.9 =
  11. 11.2.5 × 0.6 =
  12. 12.0.37 × 2.5 =
  13. 13.0.23 × 0.2 =
  14. 14.0.61 × 2.2 =
  15. 15.1.2 × 0.22 =
  16. 16.0.15 × 3.9 =
  17. 17.0.69 × 2.6 =
  18. 18.6.1 × 0.04 =
  19. 19.9.1 × 3.4 =
  20. 20.3.4 × 3.2 =
  21. 21.1.3 × 3.1 =
  22. 22.0.22 × 1.8 =
  23. 23.0.61 × 3.2 =
  24. 24.0.65 × 3.6 =
  25. 25.6.6 × 0.16 =
  26. 26.8.6 × 2.6 =
  27. 27.5.7 × 2.5 =
  28. 28.5.5 × 0.4 =
  29. 29.0.15 × 3.1 =
  30. 30.1.6 × 0.02 =
  31. 31.0.57 × 0.8 =
  32. 32.3.7 × 0.29 =
  33. 33.0.52 × 1.9 =
  34. 34.0.89 × 0.7 =
  35. 35.0.74 × 0.8 =
  36. 36.9.4 × 3.7 =
  37. 37.2.1 × 0.13 =
  38. 38.0.61 × 1.4 =
  39. 39.0.23 × 2.5 =
  40. 40.0.32 × 1.6 =

Answer key

  1. 2.277
  2. 0.022
  3. 17.94
  4. 5.04
  5. 2.257
  6. 17.52
  7. 0.126
  8. 1.015
  9. 0.273
  10. 0.171
  11. 1.5
  12. 0.925
  13. 0.046
  14. 1.342
  15. 0.264
  16. 0.585
  17. 1.794
  18. 0.244
  19. 30.94
  20. 10.88
  21. 4.03
  22. 0.396
  23. 1.952
  24. 2.34
  25. 1.056
  26. 22.36
  27. 14.25
  28. 2.2
  29. 0.465
  30. 0.032
  31. 0.456
  32. 1.073
  33. 0.988
  34. 0.623
  35. 0.592
  36. 34.78
  37. 0.273
  38. 0.854
  39. 0.575
  40. 0.512

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