Song Dynasty Conglongwei

Song Dynasty Arithmetic Competition Host: Now let's invite the finalist, Zheng Jing! He will challenge a thousand-year-old unsolved arithmetic problem! Zheng Jing: "If there is a borrowing, there must be a loan, and the loan must be equal." For a moment, heaven sent a blessing, and Zheng Jing's whole body burst into golden light. The audience gasped Hiss~ This guy is so scary!