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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 477 · 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. 1.6.1 × 3.3 =
  2. 2.0.24 × 2.1 =
  3. 3.0.72 × 2.6 =
  4. 4.1.1 × 0.16 =
  5. 5.5.1 × 3.4 =
  6. 6.4.7 × 0.12 =
  7. 7.0.91 × 3.1 =
  8. 8.0.04 × 3.4 =
  9. 9.0.59 × 1.8 =
  10. 10.2.5 × 0.4 =
  11. 11.4.6 × 3.9 =
  12. 12.0.45 × 1.4 =
  13. 13.1.1 × 0.22 =
  14. 14.8.9 × 3.3 =
  15. 15.0.76 × 1.2 =
  16. 16.0.05 × 2.8 =
  17. 17.1.5 × 0.24 =
  18. 18.2.6 × 2.8 =
  19. 19.0.94 × 1.5 =
  20. 20.9.8 × 0.32 =
  21. 21.1.7 × 0.14 =
  22. 22.2.8 × 3.7 =
  23. 23.0.57 × 2.8 =
  24. 24.0.67 × 3.4 =
  25. 25.0.72 × 3.1 =
  26. 26.0.37 × 1.8 =
  27. 27.0.04 × 2.6 =
  28. 28.0.7 × 3.4 =
  29. 29.0.17 × 1.1 =
  30. 30.1.2 × 0.7 =
  31. 31.0.67 × 0.8 =
  32. 32.0.3 × 0.2 =
  33. 33.0.7 × 2.9 =
  34. 34.0.71 × 1.3 =
  35. 35.0.92 × 3.8 =
  36. 36.0.09 × 3.7 =
  37. 37.6.3 × 1.3 =
  38. 38.7.9 × 3.7 =
  39. 39.3.1 × 0.28 =
  40. 40.1.7 × 0.33 =

Answer key

  1. 20.13
  2. 0.504
  3. 1.872
  4. 0.176
  5. 17.34
  6. 0.564
  7. 2.821
  8. 0.136
  9. 1.062
  10. 1
  11. 17.94
  12. 0.63
  13. 0.242
  14. 29.37
  15. 0.912
  16. 0.14
  17. 0.36
  18. 7.28
  19. 1.41
  20. 3.136
  21. 0.238
  22. 10.36
  23. 1.596
  24. 2.278
  25. 2.232
  26. 0.666
  27. 0.104
  28. 2.38
  29. 0.187
  30. 0.84
  31. 0.536
  32. 0.06
  33. 2.03
  34. 0.923
  35. 3.496
  36. 0.333
  37. 8.19
  38. 29.23
  39. 0.868
  40. 0.561

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