บท 69: Chapter 69 Harming Others Ends Up Harming Oneself_1

Zhou family's small classroom session had started, and Zhulan quickly assessed that Rongchuan had no foundation, while Lady Li and Zhao Shi were almost on par, able to mentally calculate simple sums within fifty but needing to use Copper Coins for assistance with anything over a hundred.

Their daughter and eldest grandson had the best foundation, also because Zhou Shuren had taught them for a few days, and numbers within a hundred were no problem for them.

Once the courtyard wall was built, the rankings changed. Rongchuan was truly clever, no wonder Zhou Shuren valued teaching him by hand—this child caught on with just a hint and could even draw inferences from one instance, simple addition, and subtraction no longer satisfied him, and he was already able to solve math problems Zhulan had constructed based on ancient texts.