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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 263 · 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. 1.0.31 × 0.2 =
  2. 2.1.5 × 0.34 =
  3. 3.4.9 × 0.05 =
  4. 4.9.2 × 2.7 =
  5. 5.3.2 × 3.6 =
  6. 6.9.3 × 0.31 =
  7. 7.4.5 × 0.22 =
  8. 8.0.8 × 3.9 =
  9. 9.0.4 × 0.9 =
  10. 10.0.62 × 0.6 =
  11. 11.9.9 × 3.7 =
  12. 12.0.89 × 0.4 =
  13. 13.2.4 × 3.1 =
  14. 14.0.76 × 3.1 =
  15. 15.0.86 × 1.1 =
  16. 16.8.5 × 0.17 =
  17. 17.0.41 × 3.7 =
  18. 18.0.91 × 0.7 =
  19. 19.4.2 × 3.6 =
  20. 20.8.2 × 0.08 =
  21. 21.9.9 × 1.2 =
  22. 22.1.3 × 0.23 =
  23. 23.0.11 × 1.8 =
  24. 24.9.4 × 2.4 =
  25. 25.1.5 × 1.9 =
  26. 26.5.6 × 0.3 =
  27. 27.7.3 × 0.26 =
  28. 28.6.5 × 0.22 =
  29. 29.0.02 × 3.4 =
  30. 30.0.61 × 2.1 =
  31. 31.0.44 × 0.3 =
  32. 32.3.7 × 2.7 =
  33. 33.8.1 × 2.5 =
  34. 34.4.5 × 0.23 =
  35. 35.8.4 × 3.4 =
  36. 36.2.5 × 1.7 =
  37. 37.8.1 × 0.03 =
  38. 38.2.5 × 1.2 =
  39. 39.5.9 × 0.02 =
  40. 40.0.75 × 0.5 =

Answer key

  1. 0.062
  2. 0.51
  3. 0.245
  4. 24.84
  5. 11.52
  6. 2.883
  7. 0.99
  8. 3.12
  9. 0.36
  10. 0.372
  11. 36.63
  12. 0.356
  13. 7.44
  14. 2.356
  15. 0.946
  16. 1.445
  17. 1.517
  18. 0.637
  19. 15.12
  20. 0.656
  21. 11.88
  22. 0.299
  23. 0.198
  24. 22.56
  25. 2.85
  26. 1.68
  27. 1.898
  28. 1.43
  29. 0.068
  30. 1.281
  31. 0.132
  32. 9.99
  33. 20.25
  34. 1.035
  35. 28.56
  36. 4.25
  37. 0.243
  38. 3
  39. 0.118
  40. 0.375

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