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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 600 · 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. 1.0.25 × 1.3 =
  2. 2.0.69 × 3.8 =
  3. 3.0.67 × 0.5 =
  4. 4.1.1 × 1.4 =
  5. 5.1.7 × 2.8 =
  6. 6.0.58 × 2.1 =
  7. 7.0.61 × 0.6 =
  8. 8.5.7 × 0.03 =
  9. 9.7.3 × 0.26 =
  10. 10.0.72 × 2.4 =
  11. 11.0.61 × 1.8 =
  12. 12.0.74 × 3.1 =
  13. 13.0.14 × 2.4 =
  14. 14.0.75 × 3.7 =
  15. 15.0.59 × 3.8 =
  16. 16.0.98 × 3.5 =
  17. 17.5.1 × 0.24 =
  18. 18.7.9 × 3.8 =
  19. 19.0.96 × 3.1 =
  20. 20.3.8 × 0.6 =
  21. 21.0.47 × 2.8 =
  22. 22.0.16 × 3.1 =
  23. 23.0.6 × 2.1 =
  24. 24.6.8 × 0.06 =
  25. 25.7.4 × 0.07 =
  26. 26.9.7 × 0.27 =
  27. 27.0.93 × 3.3 =
  28. 28.0.92 × 1.6 =
  29. 29.5.5 × 3.3 =
  30. 30.8.9 × 0.6 =
  31. 31.2.4 × 0.35 =
  32. 32.0.91 × 2.5 =
  33. 33.2.1 × 0.21 =
  34. 34.7.5 × 0.29 =
  35. 35.9.1 × 0.28 =
  36. 36.0.82 × 0.7 =
  37. 37.0.03 × 3.7 =
  38. 38.7.5 × 3.6 =
  39. 39.0.05 × 0.3 =
  40. 40.0.24 × 3.4 =

Answer key

  1. 0.325
  2. 2.622
  3. 0.335
  4. 1.54
  5. 4.76
  6. 1.218
  7. 0.366
  8. 0.171
  9. 1.898
  10. 1.728
  11. 1.098
  12. 2.294
  13. 0.336
  14. 2.775
  15. 2.242
  16. 3.43
  17. 1.224
  18. 30.02
  19. 2.976
  20. 2.28
  21. 1.316
  22. 0.496
  23. 1.26
  24. 0.408
  25. 0.518
  26. 2.619
  27. 3.069
  28. 1.472
  29. 18.15
  30. 5.34
  31. 0.84
  32. 2.275
  33. 0.441
  34. 2.175
  35. 2.548
  36. 0.574
  37. 0.111
  38. 27
  39. 0.015
  40. 0.816

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