Mathmeticians

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Across
  1. 3. pattern or sequence of numbers in triangle named after him
  2. 4. had a method to find the sum of the first 100 intergers
  3. 6. first used the X symbol for multiplication
  4. 7. discovered sequence of numbers while studying rabbits
  5. 8. created systematic procedure for isolating prime numbers
  6. 10. "Father of Logic"
Down
  1. 1. wrote "How to Solve It" Understand, Plan, Solve, and Look Back
  2. 2. developed basic idea of set theory
  3. 5. triangle illustrates the concept of fractals
  4. 9. wrote "La Thiende" (The Tenth) giving rules for computing with decimals