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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 846 · 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. 1.1.7 × 0.04 =
  2. 2.5.6 × 0.15 =
  3. 3.2.7 × 0.23 =
  4. 4.0.24 × 2.1 =
  5. 5.0.2 × 2.7 =
  6. 6.0.59 × 0.7 =
  7. 7.4.6 × 0.27 =
  8. 8.0.61 × 3.4 =
  9. 9.0.3 × 0.7 =
  10. 10.0.21 × 3.7 =
  11. 11.0.72 × 2.1 =
  12. 12.5.5 × 1.6 =
  13. 13.7.4 × 0.34 =
  14. 14.0.58 × 1.4 =
  15. 15.0.03 × 1.3 =
  16. 16.0.91 × 3.1 =
  17. 17.1.1 × 0.25 =
  18. 18.1.4 × 0.12 =
  19. 19.2.3 × 1.1 =
  20. 20.0.35 × 2.9 =
  21. 21.0.93 × 3.8 =
  22. 22.6.1 × 0.35 =
  23. 23.0.84 × 1.8 =
  24. 24.7.9 × 0.7 =
  25. 25.0.11 × 1.1 =
  26. 26.6.1 × 0.16 =
  27. 27.2.4 × 0.38 =
  28. 28.0.7 × 0.5 =
  29. 29.6.3 × 1.3 =
  30. 30.0.7 × 0.13 =
  31. 31.0.76 × 2.4 =
  32. 32.0.91 × 3.6 =
  33. 33.0.49 × 3.5 =
  34. 34.3.8 × 0.31 =
  35. 35.3.9 × 0.3 =
  36. 36.1.2 × 3.2 =
  37. 37.9.4 × 2.5 =
  38. 38.0.12 × 1.9 =
  39. 39.0.98 × 2.4 =
  40. 40.8.1 × 0.6 =

Answer key

  1. 0.068
  2. 0.84
  3. 0.621
  4. 0.504
  5. 0.54
  6. 0.413
  7. 1.242
  8. 2.074
  9. 0.21
  10. 0.777
  11. 1.512
  12. 8.8
  13. 2.516
  14. 0.812
  15. 0.039
  16. 2.821
  17. 0.275
  18. 0.168
  19. 2.53
  20. 1.015
  21. 3.534
  22. 2.135
  23. 1.512
  24. 5.53
  25. 0.121
  26. 0.976
  27. 0.912
  28. 0.35
  29. 8.19
  30. 0.091
  31. 1.824
  32. 3.276
  33. 1.715
  34. 1.178
  35. 1.17
  36. 3.84
  37. 23.5
  38. 0.228
  39. 2.352
  40. 4.86

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