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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 935 · 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. 1.0.32 × 3.2 =
  2. 2.2.1 × 3.8 =
  3. 3.3.4 × 0.2 =
  4. 4.4.7 × 1.1 =
  5. 5.0.34 × 1.5 =
  6. 6.4.1 × 0.4 =
  7. 7.0.03 × 2.1 =
  8. 8.3.5 × 0.4 =
  9. 9.7.1 × 0.27 =
  10. 10.6.1 × 0.05 =
  11. 11.7.1 × 0.2 =
  12. 12.0.16 × 1.7 =
  13. 13.2.1 × 0.03 =
  14. 14.0.35 × 1.3 =
  15. 15.0.98 × 0.2 =
  16. 16.3.1 × 3.6 =
  17. 17.0.21 × 1.2 =
  18. 18.3.5 × 2.2 =
  19. 19.7.1 × 3.2 =
  20. 20.0.94 × 1.6 =
  21. 21.7.8 × 3.9 =
  22. 22.2.7 × 0.06 =
  23. 23.0.4 × 0.31 =
  24. 24.0.38 × 3.1 =
  25. 25.7.4 × 0.12 =
  26. 26.6.4 × 0.16 =
  27. 27.1.4 × 0.38 =
  28. 28.1.3 × 0.35 =
  29. 29.0.78 × 1.3 =
  30. 30.6.7 × 0.22 =
  31. 31.7.6 × 0.04 =
  32. 32.0.51 × 2.8 =
  33. 33.7.8 × 2.3 =
  34. 34.0.78 × 1.3 =
  35. 35.0.04 × 0.9 =
  36. 36.7.3 × 0.09 =
  37. 37.0.72 × 2.2 =
  38. 38.6.4 × 3.1 =
  39. 39.3.1 × 0.32 =
  40. 40.6.5 × 0.3 =

Answer key

  1. 1.024
  2. 7.98
  3. 0.68
  4. 5.17
  5. 0.51
  6. 1.64
  7. 0.063
  8. 1.4
  9. 1.917
  10. 0.305
  11. 1.42
  12. 0.272
  13. 0.063
  14. 0.455
  15. 0.196
  16. 11.16
  17. 0.252
  18. 7.7
  19. 22.72
  20. 1.504
  21. 30.42
  22. 0.162
  23. 0.124
  24. 1.178
  25. 0.888
  26. 1.024
  27. 0.532
  28. 0.455
  29. 1.014
  30. 1.474
  31. 0.304
  32. 1.428
  33. 17.94
  34. 1.014
  35. 0.036
  36. 0.657
  37. 1.584
  38. 19.84
  39. 0.992
  40. 1.95

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