Mental Arithmetic in the Late Yuan Dynasty

Mental arithmetic in the late Yuan Dynasty: start with ten liang, and calculate half of the country The CPA traveled through the late Yuan Dynasty and started with a broken ship, a debt, and a knife to his neck. Lin Yan finished flipping through the account book and looked up: The principal is sixty taels, minus the two hundred and eighty taels you overcharged - you still owe me two hundred and twenty taels. While others wield their swords, he uses his abacus: he can calculate through the opponent's cost bottom line at a glance, and then counterattack at a low price. Starting from twelve liang, spices, futures, banks, Nanhai tickets, all the way to the red scarf chaos. The three families of Zhu, Zhang, and Chen were fighting for life and death, and they all came to beg him for food and iron. From eleven broken ships to four hundred and fifty treasure ships, from a small businessman in Quanzhou to the second-level Protector of the South China Sea - known as the Half-Biard God of Wealth. In each chapter, a person settles accounts and slaps him in the face, and the mother-in-law speaks. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.