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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 124 · 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. 1.6.3 × 1.4 =
  2. 2.0.35 × 3.3 =
  3. 3.0.6 × 0.34 =
  4. 4.5.1 × 1.2 =
  5. 5.3.1 × 2.2 =
  6. 6.1.1 × 0.16 =
  7. 7.3.4 × 0.3 =
  8. 8.2.8 × 2.4 =
  9. 9.8.5 × 1.5 =
  10. 10.7.3 × 0.05 =
  11. 11.0.38 × 1.2 =
  12. 12.0.7 × 1.1 =
  13. 13.7.8 × 0.22 =
  14. 14.0.04 × 1.5 =
  15. 15.7.1 × 0.15 =
  16. 16.1.9 × 0.6 =
  17. 17.1.3 × 0.35 =
  18. 18.1.6 × 0.2 =
  19. 19.0.92 × 3.9 =
  20. 20.8.2 × 2.1 =
  21. 21.4.2 × 0.25 =
  22. 22.0.23 × 2.7 =
  23. 23.0.28 × 0.4 =
  24. 24.0.91 × 2.6 =
  25. 25.0.11 × 1.6 =
  26. 26.1.5 × 1.2 =
  27. 27.3.4 × 0.38 =
  28. 28.6.1 × 0.22 =
  29. 29.6.4 × 0.26 =
  30. 30.7.5 × 0.21 =
  31. 31.2.4 × 2.3 =
  32. 32.7.3 × 3.1 =
  33. 33.6.3 × 3.3 =
  34. 34.0.95 × 0.6 =
  35. 35.6.2 × 3.3 =
  36. 36.0.3 × 0.28 =
  37. 37.0.7 × 2.1 =
  38. 38.0.92 × 2.3 =
  39. 39.6.8 × 3.4 =
  40. 40.0.66 × 1.3 =

Answer key

  1. 8.82
  2. 1.155
  3. 0.204
  4. 6.12
  5. 6.82
  6. 0.176
  7. 1.02
  8. 6.72
  9. 12.75
  10. 0.365
  11. 0.456
  12. 0.77
  13. 1.716
  14. 0.06
  15. 1.065
  16. 1.14
  17. 0.455
  18. 0.32
  19. 3.588
  20. 17.22
  21. 1.05
  22. 0.621
  23. 0.112
  24. 2.366
  25. 0.176
  26. 1.8
  27. 1.292
  28. 1.342
  29. 1.664
  30. 1.575
  31. 5.52
  32. 22.63
  33. 20.79
  34. 0.57
  35. 20.46
  36. 0.084
  37. 1.47
  38. 2.116
  39. 23.12
  40. 0.858

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