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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 890 · 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. 1.1.4 × 1.8 =
  2. 2.2.1 × 0.9 =
  3. 3.5.3 × 3.5 =
  4. 4.0.21 × 3.4 =
  5. 5.0.39 × 2.5 =
  6. 6.0.6 × 3.3 =
  7. 7.0.6 × 0.09 =
  8. 8.0.92 × 3.3 =
  9. 9.0.94 × 2.6 =
  10. 10.8.3 × 2.1 =
  11. 11.0.57 × 2.2 =
  12. 12.0.67 × 2.2 =
  13. 13.4.4 × 0.9 =
  14. 14.6.2 × 0.11 =
  15. 15.9.6 × 1.5 =
  16. 16.2.9 × 0.35 =
  17. 17.6.2 × 0.19 =
  18. 18.0.08 × 3.5 =
  19. 19.6.3 × 3.3 =
  20. 20.2.9 × 3.6 =
  21. 21.2.1 × 0.26 =
  22. 22.3.5 × 0.31 =
  23. 23.0.82 × 3.8 =
  24. 24.0.57 × 2.5 =
  25. 25.0.57 × 3.2 =
  26. 26.0.16 × 1.8 =
  27. 27.2.9 × 0.37 =
  28. 28.2.8 × 0.36 =
  29. 29.2.9 × 3.6 =
  30. 30.1.1 × 3.5 =
  31. 31.9.9 × 0.07 =
  32. 32.0.3 × 3.6 =
  33. 33.0.9 × 0.4 =
  34. 34.2.8 × 0.11 =
  35. 35.0.84 × 2.2 =
  36. 36.2.6 × 0.34 =
  37. 37.3.9 × 3.1 =
  38. 38.0.77 × 0.3 =
  39. 39.0.67 × 0.9 =
  40. 40.1.5 × 1.8 =

Answer key

  1. 2.52
  2. 1.89
  3. 18.55
  4. 0.714
  5. 0.975
  6. 1.98
  7. 0.054
  8. 3.036
  9. 2.444
  10. 17.43
  11. 1.254
  12. 1.474
  13. 3.96
  14. 0.682
  15. 14.4
  16. 1.015
  17. 1.178
  18. 0.28
  19. 20.79
  20. 10.44
  21. 0.546
  22. 1.085
  23. 3.116
  24. 1.425
  25. 1.824
  26. 0.288
  27. 1.073
  28. 1.008
  29. 10.44
  30. 3.85
  31. 0.693
  32. 1.08
  33. 0.36
  34. 0.308
  35. 1.848
  36. 0.884
  37. 12.09
  38. 0.231
  39. 0.603
  40. 2.7

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