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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 858 · 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. 1.8.5 × 0.25 =
  2. 2.6.5 × 0.23 =
  3. 3.2.1 × 2.1 =
  4. 4.0.62 × 0.3 =
  5. 5.0.8 × 3.9 =
  6. 6.0.44 × 2.9 =
  7. 7.5.4 × 0.15 =
  8. 8.0.34 × 3.6 =
  9. 9.0.09 × 3.1 =
  10. 10.3.1 × 3.7 =
  11. 11.0.06 × 2.7 =
  12. 12.3.8 × 0.13 =
  13. 13.2.1 × 2.8 =
  14. 14.2.6 × 0.22 =
  15. 15.0.4 × 0.09 =
  16. 16.0.99 × 1.5 =
  17. 17.5.3 × 0.08 =
  18. 18.4.6 × 3.1 =
  19. 19.0.51 × 0.4 =
  20. 20.0.75 × 2.7 =
  21. 21.0.85 × 3.5 =
  22. 22.4.4 × 2.7 =
  23. 23.4.5 × 3.1 =
  24. 24.2.6 × 2.4 =
  25. 25.7.4 × 0.35 =
  26. 26.0.15 × 1.1 =
  27. 27.0.64 × 1.3 =
  28. 28.9.9 × 0.31 =
  29. 29.0.87 × 0.2 =
  30. 30.2.7 × 0.05 =
  31. 31.0.22 × 2.1 =
  32. 32.0.56 × 2.3 =
  33. 33.3.6 × 0.17 =
  34. 34.0.8 × 1.8 =
  35. 35.1.5 × 3.6 =
  36. 36.9.7 × 0.05 =
  37. 37.2.2 × 1.7 =
  38. 38.7.4 × 2.7 =
  39. 39.0.95 × 0.7 =
  40. 40.0.37 × 3.8 =

Answer key

  1. 2.125
  2. 1.495
  3. 4.41
  4. 0.186
  5. 3.12
  6. 1.276
  7. 0.81
  8. 1.224
  9. 0.279
  10. 11.47
  11. 0.162
  12. 0.494
  13. 5.88
  14. 0.572
  15. 0.036
  16. 1.485
  17. 0.424
  18. 14.26
  19. 0.204
  20. 2.025
  21. 2.975
  22. 11.88
  23. 13.95
  24. 6.24
  25. 2.59
  26. 0.165
  27. 0.832
  28. 3.069
  29. 0.174
  30. 0.135
  31. 0.462
  32. 1.288
  33. 0.612
  34. 1.44
  35. 5.4
  36. 0.485
  37. 3.74
  38. 19.98
  39. 0.665
  40. 1.406

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