C409
When Huangfu Yu and Su Jingya saw the method to verify the calculations of the Xiao Budian, they were immediately thrown into disorder.
"Little darling, how did big brother teach you arithmetic?!" After a long while, when the Xiao Budian had finished half of the paper and not a single one of the questions were correct, Su Jingya really ? Unable to keep her composure, she asked in a low voice
