Li Chengqian walked all the way until he reached the outside of the cold palace, and at this time Li Shimin stood at the pavilion, looking at all the potatoes in front of him.

It's getting closer and closer to the ripening of potatoes, and this time the potatoes are ripe, and they can be eaten freely.

There were five small dots behind him, and it was Li Tai and others who followed Li Shimin.

I only heard Li Shimin ask: "I heard Gao Ming say, there are fifty acres of potatoes here, which are sown for one acre of potato seeds." Now, how about I test your numbers? ”

Li Shimin heard Li Chengqian say that the ABO number would start from the East Palace and let the five princes learn first, so he intended to come out to assess these five people.

At this time, Li Ke said: "Your Majesty, these days Master Confucius and the imperial brother are teaching us the method of addition, subtraction, multiplication and division, and our brothers have learned it well!" Deal with some simple questions, no problem! ”

Li Ke means that you come to take the test, we have learned.

Li Tai also said: "Yes, the method of the imperial brother is really very good! If it can be promoted, then Datang will be stronger! ”

When Li Shimin heard Li Tai's words, his interest was even higher.

"Hahaha! Gao Ming really lived up to me! Well, I'll test you! ”

The five of them said in unison: "Your Majesty, please ask the question!" ”

Li Shimin smiled and said, "Then I'll use these potatoes in front of me as the title." If all these potatoes you see are promoted, how many acres can be planted? ”

Li Ke preceded everyone else: "Two thousand five hundred acres!" ”

Li Shimin nodded, indicating that the answer was correct, and then continued: "Okay, good!" That acre yields 300 stones, how many stones can be produced in these 50 acres? ”

At this time, the clever Li Tai took the lead and said: "It's fifteen thousand stones!" ”

Li Shimin asked. "Then if it is 2,500 acres, how many stones can be produced?"

The more questions were asked, the more difficult it became, far exceeding their oral arithmetic ability, so the five of them lowered their heads and gestured with their little hands.

Suddenly, a voice rang out.

"Seven hundred and fifty thousand stones, Your Majesty!"

"Good, good! 750,000 stones, each person eats three stones a year, how many people can be fed in a year? ”

"150,000 people!"

Again, the voice said.

150,000 people, that's a lot, as long as there is another season, then the rations of millions of people will not be a problem!

Only then did Li Shimin realize that this voice was wrong, it was not the five princes.

When I turned my head, it turned out to be Li Chengqian.

"I'll just say, how could these five people figure it out so quickly, it turned out to be Gao Ming, come on, come on, Gao Ming, you come and chat with me!"

Li Shimin lured Li Chengqian over.

Li Ke, Li Tai and the others saluted Li Chengqian and said, "I've seen the imperial brother!" ”

"I've seen Your Majesty! Hello royal brothers! ”

After Li Chengqian finished his work, he walked to Li Shimin's side.

The five people looked at Li Chengqian with adoring eyes, because it was purely calculated.

"Sure enough, it's the ABO number method introduced by Gao Ming, and it's very fast to calculate."

Li Shimin couldn't help but say something more.

"Your Majesty, the imperial brothers, they are not very familiar with the structure of this number, so they will be slower."

"They're doing well, you know, you don't have that multiplication in the past, but it takes a long time to do the math! Gao Ming, your method is very useful! It's worth promoting! ”

Some time ago, Li Chengqian began to educate the princes, and whatever he said, he should start with his own family.

And Kong Yingda spent more time in the country to promote, this mathematical method, can be passed on to the public, spread by thousands, as long as one person can, it won't take too long, there will be thousands of people who can do this mathematics, of course, this is only simple mathematics, if it is more difficult, I am afraid it will take more time.

However, ordinary addition, subtraction, multiplication and division are enough for them.

"This is thanks to the full support of His Majesty, otherwise the sons would not have been able to promote it!"

He said that Li Shimin was very happy.

"Good things have to be promoted, my Tang Dynasty is tolerant, absorb the good, and give full play to it!"

Li Shimin, as a generation of Ming Jun, can do this, which is indeed good.

"By the way, why did Your Majesty let your sons come?"

"Today, I just wanted to go up to the cold palace to see how these potatoes are growing, and I happened to meet them reading, so I thought of asking you to come over and have a look, and by the way, ask when these potatoes are ripe?"

There is a lot of nonsense in front of me, but the most important thing is to ask when the potatoes are ripe.

Why not be a little more human?

"Your Majesty, according to the Erchen's estimate, the Mid-Autumn Festival can be harvested!"

These potatoes are early-maturing varieties and can be harvested in sixty days.

"Good! The Mid-Autumn Festival can be harvested, that is excellent! When the time comes, I will set up a potato feast for the ministers! ”

Speaking of this, Li Chengqian had an idea.

He said: "Your Majesty, Erchen thinks that 3,000 people can be selected from among the people, let them witness this potato feast together, and just wait for the spring next year to promote it!" ”

Li Chengqian thought very thoughtfully, but in fact, the ministers were no longer surprised by these potatoes, and it was useless to hold any banquets. It is better to let the people of the people also participate, and there should not be too many people, after all, there will be production next year, and there should not be too many idle people in the palace.

3,000 people, 30 points for one person, 90,000 points, that's better than anything else!

"And where did these 3,000 come from? How to choose? ”

"Erchen has several points, first, he must be a farmer, and second, he must be summoned from all over Datang, and he can be directly promoted in the future. And it is also good to keep them together, first by the way, explain to them how to grow potatoes, so that they can be promoted next year! Second, give them confidence, which is more important than anything else. Third, the retainers will give them a purchase price, even if they don't eat it, they can sell it to the imperial court, and then the imperial court will distribute it uniformly. ”

Li Shimin thought for a while and said: "Your idea is very mature, so let's do what you want!" I'll help you solve this problem! ”

If that's the case, it's good.

It also saved a lot of things for Li Chengqian.

"Thank you, Your Majesty!"

"Yes, I want to thank you!"

Li Shi then said earnestly: "Gao Ming, your way of doing things makes me refreshed, what I didn't dare to do before, now I don't have so many worries, you are really a genius!" ”

"This is still under the strength of the Tang Dynasty, and Erchen dares to do this!"

Li Chengqian's way of speaking made Li Shimin even more admired, but made the other five princes at a loss, how did they know what these two fathers and sons were talking about.

"Haha, Gao Ming, your way of speaking, follow me!"

Li Shimin said very shamelessly.

Li Chengqian had no choice but to laugh, and at this time he suddenly found Wei Zheng coming in a hurry.