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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 45 · 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. 1.8.2 × 0.04 =
  2. 2.0.24 × 3.3 =
  3. 3.3.3 × 0.25 =
  4. 4.0.41 × 0.9 =
  5. 5.8.7 × 0.02 =
  6. 6.7.7 × 1.5 =
  7. 7.5.3 × 0.07 =
  8. 8.0.15 × 3.1 =
  9. 9.2.4 × 0.28 =
  10. 10.2.8 × 2.7 =
  11. 11.2.6 × 0.32 =
  12. 12.0.96 × 3.5 =
  13. 13.0.04 × 0.9 =
  14. 14.2.1 × 2.7 =
  15. 15.0.04 × 0.5 =
  16. 16.1.6 × 3.8 =
  17. 17.0.11 × 2.9 =
  18. 18.0.69 × 2.6 =
  19. 19.0.07 × 2.4 =
  20. 20.6.4 × 0.31 =
  21. 21.0.81 × 0.2 =
  22. 22.0.43 × 2.5 =
  23. 23.0.84 × 2.1 =
  24. 24.7.2 × 0.16 =
  25. 25.9.2 × 2.1 =
  26. 26.5.8 × 0.38 =
  27. 27.0.4 × 0.05 =
  28. 28.0.9 × 0.9 =
  29. 29.6.5 × 3.9 =
  30. 30.0.21 × 3.7 =
  31. 31.2.2 × 2.5 =
  32. 32.0.19 × 2.1 =
  33. 33.0.51 × 3.7 =
  34. 34.0.11 × 3.2 =
  35. 35.0.65 × 3.6 =
  36. 36.0.69 × 2.3 =
  37. 37.1.1 × 0.06 =
  38. 38.0.21 × 1.7 =
  39. 39.0.43 × 2.9 =
  40. 40.6.8 × 0.38 =

Answer key

  1. 0.328
  2. 0.792
  3. 0.825
  4. 0.369
  5. 0.174
  6. 11.55
  7. 0.371
  8. 0.465
  9. 0.672
  10. 7.56
  11. 0.832
  12. 3.36
  13. 0.036
  14. 5.67
  15. 0.02
  16. 6.08
  17. 0.319
  18. 1.794
  19. 0.168
  20. 1.984
  21. 0.162
  22. 1.075
  23. 1.764
  24. 1.152
  25. 19.32
  26. 2.204
  27. 0.02
  28. 0.81
  29. 25.35
  30. 0.777
  31. 5.5
  32. 0.399
  33. 1.887
  34. 0.352
  35. 2.34
  36. 1.587
  37. 0.066
  38. 0.357
  39. 1.247
  40. 2.584

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