A car accident, our family of three crossed

"Yes! Those are all left at home. My aunt doesn't allow me to sell them." Yangyang's little mouth was chattering and he almost revealed all the secrets of his family.

Mu Dun quickly covered his mouth, then smiled at Yang Dongsheng and said, "Uncle Yang, don't you need to check the quality?"

Yang Dongsheng paused and nodded appreciatively at Mudun. This kid is quite shrewd.

He changed the subject and said, "I just took a quick look and the herbs themselves are in very good condition. I'm sure you were very careful when you picked them."

"Mmmmmmm!"

Yangyang brushed away Mudun's palm and nodded repeatedly, "We have to be very careful when picking herbs."

"I can see that." Yang Dongsheng nodded with a smile.

Soon, the guy finished weighing and took an abacus to calculate in front of the kids, how much each medicinal ingredient weighed, how much it cost, etc.

But before he could figure out the result on the abacus, the kids took turns to calculate how much silver each medicinal ingredient cost, as well as the total amount.

Yang Dongsheng was shocked once again. He quickly snatched the abacus and account book from the confused clerk and checked them one by one. The result he got was consistent with the answer they reported, a total of ten taels, six qian and fifty-six copper coins.

"How did you calculate so quickly and accurately?"

"Just calculate it like that!" This time, even Mudun didn't know how to explain it, "It's mental arithmetic."

They know how to do math, but they really can't explain to others how to do it.

Yang Dongsheng could guess that they probably couldn't explain it clearly, so he made a second choice and asked, "Who did you learn arithmetic from?"

"In the primary school! Master Song taught me." Chen Ran answered dazedly.

Then, Yang Yang continued with a little pride: "Ms. Song, that's my mother!"

Yang Dongsheng understood it. When he went to visit the primary school that day, Master Liu took him to visit the library. He saw several calligraphy works hanging in the library, each of which contained several poems.

Master Liu told him that those poems were written by Master Song when he was teaching the children.

He thought she was an extraordinary woman at the time and admired her very much. Now, he was even more certain of his thought at that time that she was an extraordinary woman.

Suddenly he felt that his decision to withdraw his son from the county academy and send him to elementary school was extremely correct.

He did not expect his son to take the imperial examination in the future, but he had to learn arithmetic. They were a merchant family, and if he couldn't even do the math, how would he inherit the family business in the future?

When paying the bill, Yang Dongsheng asked the waiter to pay ten taels and seven cents directly.

Mudun counted and said, "Uncle Yang, how come there are forty-four more copper coins?"

"No problem, I'll round it up for you. The extra money is just like uncle treating you to some candied haws."

Mu Dun hesitated for a moment, then finally nodded and accepted it. "Okay then! Thank you, Uncle Yang."

After selling the medicinal herbs, the three kids were about to leave. Yang Zhaoxu was reluctant to let them go and wanted to invite them to stay and play with him.

Yangyang said, "No, my aunt is waiting for us outside! We also have to go pick up my mother, so we can't play with you."

Seeing Yang Zhaoxu's face visibly fall, Mu Dun said, "It's okay. You can come to the elementary school in two days, right? We'll be waiting for you there! See you in two days."

Thinking of this, Yang Zhaoxu became happy again and waved goodbye to his friends.