"Today we're going to learn multiplication and division."

It's still the same room, but the layout in the room has changed a lot, a lectern, five sets of tables and chairs neatly arranged in the room.

Behind the lectern, a five-foot-wide and eight-foot-long wooden plank replaced the original small plank, and was painted with a layer of black lacquer, which exuded a slightly pungent smell.

Morton picked up a piece of chalk, a piece of chalk wrote a few words on the blackboard, the white limestone was clearly printed on the black wooden board, very conspicuous, the contrast between black and white made people look very comfortable, at a glance.

This set of equipment is Mo Dun let Lao Zhangtou hurry up to work, the blackboard is very simple, an apprentice can make it, and the chalk is also very easy to do, Mojia Village is not short of limestone at all, the limestone is watered, after precipitation, and then poured into the mold, two days of air drying, it can be formed soon.

The snow-white chalk leaves a clear mark on the blackboard, and rows and rows of columns are clearly arranged on the blackboard.

"Multiplication formulas?" Qin Huaiyu read it out lightly.

"Yes, today we are going to learn multiplication, and the multiplication formula table is the most important foundation of mathematics." Merton became a teacher for the second time, and he was already born and matured twice, and he quickly grasped the rhythm.

Zu Mingjun looked at the multiplication formula table on the blackboard in shock, and his heart was shocked, of course he could calculate these numbers, but when he completely controlled these multiplications, he was already more than ten years old, and he had put a lot of effort into it in private.

"One by one, one by two, one by two, two by two......"

Looking at a group of old students reading multiplication formulas in that serious book, whether it was the naughty Qin Huaiyu and the three people, or Li Gaoming, who was dedicated to studying, and Zu Mingjun, who had made great achievements in mathematics, everyone was hungry to absorb this new knowledge.

Merton was relieved. The knowledge he knows is the essence of thousands of years from his ancestors, and now it is spread out, saving countless people from detours, which is the greatest respect for this knowledge.

Multiplication formulas and simple multiplication and division are not difficult for five people at all, each of them has a very solid mathematical foundation, what is missing is only some skills, multiplication formulas, directly summarize their previous knowledge.

"If I had known that there was such an easy way, I wouldn't have suffered so many boards." Qin Huaiyu said with a long sigh.

Cheng Chumo and Yu Chi Baolin also nodded again and again, the three of them have been in school for many years, and the board has not been counted, and only they know the suffering.

Don't look at the three of them, they are all gentlemen, and they are also at the bottom of the country. But that's compared with the concentrated national elite like Guozijian, compared to ordinary people, their foundation is very good, after all, the education of the big family is systematic, and the three of them all carry the prosperity of the family, and it is impossible for them to be unlearned.

"It's breathtaking! The sages of the Mohist family have been silent for thousands of years, and they have studied such profound mathematical knowledge. This method is simple and convenient, easy to calculate, and clear at a glance, and this method is the gospel of thousands of students. Li Gaoming was shocked and couldn't help but sigh again and again.

Zu Mingjun nodded, he is also an arithmetic family, with a profound family background, and the arithmetic achievements they are proud of, adding a piece is not as important as the multiplication formula table in front of them, so the multiplication formula table, even six-year-old children can learn fluently, which has played an immeasurable role in the promotion of arithmetic.

The class was quickly over, and after Qin Huaiyu and the five of them tasted Master Yu's mouth-watering meal again, they got up to say goodbye.

"Brother Li, please stay," Merton called out to Li Gaoming, who was about to leave.

"What's wrong? What does Brother Mo have to do? Li Gaoming wondered.

Merton smiled slightly, stretched out his hand, and saw Ziyi walking in with three pairs of boots.

"Young Master!" Purple shouted crisply.

"This is a gift that Merton personally prepared for Brother Gao Ming!" Merton said, pointing to his boots.

Qin Huaiyu and the others all looked at the boots in Ziyi's hand curiously, and said with a smile: "Merton, you are so eccentric, you actually gave a gift to Li Gaoming behind our back."

"Looks really good! It's not common to see such good shoes! Cheng Chumo said exaggeratedly.

It's not wrong to say that Merton is the best shoe maker in Mojia Village, and the materials and workmanship are first-class.

"Brother Mo is polite, the so-called uselessness is not rewarded. Gao Ming himself is cheeky to study. Brother Mo didn't hide anything because of Gao Ming's first acquaintance, but gave him everything, so he was already ashamed of Gao Ming, how could he accept such a valuable gift again," Li Gaoming postponed.

Morton smiled and said, "Brother Gao Ming, don't shirk, please give it a try." ”

At Merton's repeated insistence, Li Gaoming reluctantly picked up Merton's shoes.

"This is a total of three pairs of shoes, and I don't know Brother Gao Ming's shoe size, so I made three pairs of large, medium and small, I believe there is one suitable for you." Merton said confidently.

Li Gaoming's face was a little hesitant, he could see that there must be a reason why Merton gave him shoes, but he didn't want to directly expose the defects of his inconvenient legs and feet in front of everyone.

"Brother Li, let's go to the back hall with me to try on new shoes! can't live up to Brother Mo's kindness. Cheng Chumo took the initiative to relieve the siege, picked up the shoes in Ziyi's hand, and led Li Gaoming to the back hall.

Qin Huaiyu and the others were waiting in the front hall, Zu Mingjun was a little confused, but Qin Huaiyu looked at the back hall a little thoughtfully.

"Ahh

Suddenly, an exclamation came from the back hall.

"What's wrong?" Qin Huaiyu was the first to jump up nervously.

"It's fine!" Cheng Chumo responded loudly, but there were still bursts of exclamations from the back hall, but with surprise in his voice, Qin Huaiyu couldn't help but rush in.

Not for a while. As soon as the door curtain was lifted, Li Gaoming and Cheng Chumo walked in, both with incredible looks on their faces.

"Thank you Brother Mo for your kindness, Gao Ming will remember it!" Li Gaoming was walking towards Merton and saluted solemnly.

"Gao Ming, you are polite, it is natural for friends to help each other." Merton hurriedly helped Li Gaoming up.

"Gao Ming, your legs?" Qin Huaiyu looked at Li Gaoming's feet in surprise, and he realized that Li Gaoming's leg disease was not the slightest bit after wearing these shoes again, and he walked normally.

"Hahaha, isn't it incredible!" Li Gaoming was extremely excited, and walked a few steps steadily, and he couldn't see that there was a problem with his legs at all.

"What's going on?" Several people were surprised, Li Gaoming had only just entered the back hall for a quarter of an hour, and he was cured of his leg disease.

"Is that the reason for these shoes?" Zu Mingjun set his eyes on Li Gaoming's brand-new shoes.

"Yes, this is the shoe! Although the new shoes sent by Brother Mo look exactly the same as ordinary shoes from the outside, there is a hidden mystery inside, and the inside has increased by an inch, so that Li no longer has to be ridiculed when he walks. Li Gaoming said excitedly.

Li Gaoming was extremely excited, leg disease has always been his heart disease, and now it has been solved so skillfully, although it has not completely solved the foot disease, but it has not affected walking at all.

"Merton, for my brother to express my gratitude in words, Brother Mo's kindness, Gao Ming remembered." Li Gaoming said solemnly.

"Brother Gao Ming said this, we are friends, and it is appropriate for friends to help each other, without trying to reciprocate, and if you say anything about kindness, you will see outside!" Merton feigned.

"Hahaha, that's a good point, today I, Li Gaoming, will make you a friend." Li Gaoming laughed.

"Yes, we are friends!" Qin Huaiyu and the four of them also got up together and said solemnly.