Question 1: The book also includes Euclidean geometric proofs, and a study of simultaneous linear equations following ________, which Fibonacci most likely learned from Persian mathematician alKaraji (Ore 1948).  

Question 2: Liber Abaci was among the first Western books to describe Arabic numerals, the first being the Codex Vigilanus completed in 976, other pivotal works followed by ________ in 999.  

Question 3: '''Liber Abaci''' (1202, also spelled as Liber Abbaci) is a historic book on arithmetic by Leonardo of Pisa, known later by his nickname ________.  

Question 4: The second section presents examples from commerce, such as conversions of ________ and measurements, and calculations of profit and interest.  

Question 5: Another example in this chapter, describing the growth of a population of rabbits, was the origin of the ________ for which the author is most famous today.  

Question 6: The first section introduces the Arabic numeral system, including ________ and methods for converting between different repesentation systems.  

Question 7: II.12) the ________, perfect numbers and Mersenne primes as well as formulas for arithmetic series and for square pyramidal numbers.  

Question 8: The fourth section derives approximations, both numerical and geometrical, of ________ such as square roots.  

