Thanks: Book friends are a little strange, and Jiu Li is a reward!

The next day, Li Chengqian got up early, and he heard someone come in and preach: "Your Royal Highness the Prince, Your Majesty is invited!" ”

This early in the morning, I want to let myself pass, is it for the ABO number?

It must be so, Li Chengqian looked at the sky, and at this time the court was probably over.

It's okay to go for a walk in the Tai Chi Palace.

So he took Xue Rengui to Taiji Palace.

When he entered the palace, the civil and military forces of the Manchu Dynasty had already left the court, leaving only Li Shimin and Kong Yingda, as well as the eldest grandson Wuji, Hou Junji and others present.

The others were already out of the scene, so it was hard to pretend to be forced, how could those people be missing? It's really depressing.

As soon as he saw Li Shimin, he saluted and said, "Erchen has seen Your Majesty!" ”

Everyone also said: "I have seen His Royal Highness the Prince!" ”

Seeing that Kong Yingda was also there, Li Chengqian probably knew what was going on.

Li Shimin first said: "Gao Ming, I heard Kong Yingda say that you brought something called ABO number, which is very easy to use, let us promote it?" ”

Without waiting for Li Chengqian's reply, the eldest grandson Wuji said: "His Royal Highness the Crown Prince must think that I am not good at mathematics in the Tang Dynasty, so I introduced the numbers of this state, right?" ”

What is ABO? No one knows, but once it is a place outside of Datang, it will be called Fanbang by them.

This hat is buttoned down, and it's really big.

But Li Chengqian said realistically: "After all, my Datang mathematics is a bit difficult to learn, and it is not convenient enough, and the algorithms such as solving and answering questions are complicated. ”

The fact that the ABO number can become a global unified number in future generations must have its great advantages.

If nothing else, in terms of the convenience of writing, it is definitely the irreplaceable existence of other numbers.

Hou Junji said: "I thought that Datang mathematics was okay, and there was no need to promote the mathematics of other countries, it was really angry with others and destroyed their own prestige!" ”

"It should be someone else's advanced, we have to learn it, so that we can be strong! This king's approach is called the culmination of the world! You don't understand this truth, do you? ”

Kong Yingda also said: "Hou Shangshu's words are wrong, the so-called threesome must have my teacher, this Tianzhu number is so convenient, we should learn from its good and implement it in the world." Let everyone in the world learn to provide convenience for life! ”

Li Chengqian smiled and asked, "Qi Guogong, Hou Shangshu, do you know mathematics?" ”

When the two of them were asked like this, they were directly confused, what do they understand? This is obviously looking down on them.

The eldest grandson Wuji said: "The minister has been familiar with the ninety-nine songs since he was a child! There is a small study of mathematics. ”

The multiplication formula (also known as the "ninety-nine song") has been produced for a long time. As far back as the Spring and Autumn Period and the Warring States Period, Jiujiu Song has been widely used by people.

In many writings of the time, some multiplication formulas have been cited. The original ninety-nine song started with "ninety-nine-eighty-one", just like the ninety-nine-eighty-one change of Monkey King, and the subsequent seventy-seven forty-nine days, three seven twenty-one, these are the contents of the ninety-nine song.

The eldest grandson Wuji really dares to say that there is such a rudimentary thing as Jiujiu Song, and he dares to say that there is little research, which is really shameless!

But it's okay, just take them for the test, they probably won't be more difficult.

"Well, this king will give you three problems to solve, see if you can solve them, if all of them are solved, this king will not advocate implementation?"

Kong Yingda was a little nervous at this time, he was afraid that if these two people answered, then his plan would be ruined.

"It's okay, they can't answer the third question!"

looked down on the two of them like this, which made them very angry.

Hou Junji agreed: "It's feasible, if His Royal Highness the Crown Prince can stump us, we won't stop it anymore!" ”

"What about Qi Guogong?"

"So do I!"

"Your Majesty, please testify for us!"

Li Shimin said straightly: "It's feasible, I also want to see if the mathematics of this state is really that good!" ”

"Well, listen up! There are eight people, each with seven cents, how much is the total? ”

The eldest grandson Wuji preemptively agreed: "Fifty-six dollars!" Can you make something difficult!? ”

At that time, there was no such thing as multiplication, and the eldest grandson Wuji responded directly with the ninety-nine song.

It's also very arrogant.

Li Chengqian ignored it, and then raised the question: "Eleven people, each person has eleven yuan, how much money is there in total?" ”

At this time, everyone was silent, after all, Jiujiu Ge only reached the single position, not the tenth, and when Li Chengqian took the exam, they were all stumped.

In the end, Hou Junji broke his fingers there, and after a long time, he said, "But one hundred and twenty-one cents?" ”

After hearing this, the eldest grandson Wuji laughed and said: "Yes, yes, yes, it's one hundred and twenty-one!" Hou Shangshu is really powerful! ”

"Very good, then next, you listen to this question!"

The people listened attentively.

Li Chengqian said: "One hundred and thirty-one people, each of them has three hundred and ninety-eight dollars, how much money is there in total?" ”

As soon as this question came out, everyone was stunned, this was beyond their knowledge.

The eldest grandson Wuji shouted: "How can this be calculated!" His Royal Highness the Crown Prince, I'm afraid no one can figure it out, right? ”

"No, how do you count so many numbers? His Royal Highness the Crown Prince won't just say the number. ”

"You can't count it, but this king can!"

After speaking, Li Chengqian walked to the side, took out a piece of paper and pen, and listed the multiplication formula.

It only took a dozen seconds to get the result: fifty-two thousand one hundred and thirty-eight!

When Li Shimin heard this, he hurriedly asked people to calculate the result with calculations.

Arithmetic is the arithmetic notation of the decimal system in ancient China, which is a great creation in the history of mathematics in the world.

It probably took a long time.

Only then did someone report the answer.

"Your Majesty, the villain has come to the result: fifty-two thousand one hundred and thirty-eight"

When the results came out, everyone was shocked.

At the same time, it also brought him more than a hundred points, which he didn't look at at at all, but it's a pity that the ministers are gone, otherwise it could be more.

Li Chengqian finally smiled and said: "What's the matter, do you still think that the mathematical value of this state is not worth promoting?" ”

Don't wait for the eldest grandson Wuji to say it.

Li Shimin said directly: "Push!" Push it straight ahead! ”

The convenience of this number has conquered him.

With Li Shimin's words, it will be worth it.

"Yes! Your Majesty, the ministers there will promote it together with printing! And Erchen invited Master Confucius to be the host to promote the whole Datang! ”

"Accurate!"

In this way, the generalization of mathematics was like this, which surprised him a little.

When he left the Tai Chi Palace, a prompt came to his head: Congratulations to the host for performing the math promotion task! The bonus bonus is 10%.

Well? This is an extraneous joy, and it seems that we need to put more effort into education.

He didn't know that at this time, a plot was brewing in another place on how to defeat him.