Datang: I am so happy to marry a disfigured princess!

Chapter 183 You are embarrassing me!

As an imperial scholar, Kong Yingda would not do anything like count, but in his heart he felt that counting was not a big deal.

It's just a matter of arithmetic. Those who learn better and stand out may be able to work as supervisors under the Ministry of Works, specializing in the kind of work of supervising the construction of houses.

Or just follow Li Chunfeng and tinker with astronomical things all day long, which is of no great use anyway.

No matter how well you teach or how well you learn, what will happen?
However, when he sat next to the student and saw the student listening to Lin Heng's lecture on the stage with earnest eyes and a sincere attitude, he couldn't help but be stunned.

Is there anything about this number that can attract them?
Kong Yingda asked the students on the side in confusion: "What do the symbols above represent?"

The student smiled and said: "It was the symbols that Prince Consort Lin found to replace the question. For example, this one means one multiplied by one equals two. These symbols all have corresponding comparisons."

Kong Yingda chuckled and said: "Wouldn't it be the same if it were replaced with symbols? Isn't this pretentious?"

The student then explained: "It's not like this. For example, 99, written on paper, is eleven characters, but represented by this symbol, only six nines are needed."

Kong Yingda was immediately puzzled: "Why do we only need six of these .9?"

The student was about to answer, but found that the students next to him had already turned to the next page, and he quickly turned to the next page: "I'm really sorry, Master Kong, Prince Consort Lin's lecture is going a bit fast, I have to listen to the lecture first."

Kong Yingda nodded, keeping this matter in his mind.

Why can you express it so easily?
When he came back to his senses, he found that Lin Heng was already explaining the vertical form of multiplication. He was holding up a piece of paper, and it was the real one in his hand.

"Let's do something simpler. Eleven times eleven, misplaced multiplication, and the misplaced results are added together. The result is 120 one..."

Kong Yingda was immediately stunned, can multiplication be calculated like this?
Vertical type, is it some kind of calculation method?
The calculation basis of the vertical formula seems to be the Jiujiu Jue, and the Jiujiu Jue can obviously only calculate numbers within 81 to [-], but this vertical formula can calculate larger and more numbers.

One student asked: "What if three-digit numbers are multiplied together?"

"Continue to dislocate, the rules are the same, but when you hit zero, you can do this."

Lin Heng then demonstrated, and all the students listened attentively.

Kong Yingda was below, dumbfounded.

What is this all about?
He has learned arithmetic, but he can't understand this stuff!
Could it be that Lin Heng himself found some wild tricks from nowhere and taught them to these students?
Kong Yingda had this idea and immediately stopped: "Consort Lin, can I ask, what are you talking about?"

Almost instantly, the old man felt that eyes from all directions were on him.

Lin Heng smiled and said: "Of course it's calculated. What do Kong Jijiu think?"

Kong Yingda immediately said: "I think your substitution method of replacing some symbols is somewhat contrary to the original intention of calculation."

Lin Heng was immediately puzzled: "What is disobedience?"

"Of course, the original text has been replaced with this complicated pattern, which complicates the amount that needs to be calculated simply. If you replace it with such a symbol, who can understand it?"

Lin Heng looked at the students present: "Can't you understand?"

"understand!"

Everyone spoke together, and Lin Heng then looked at Kong Yingda: "Kong Jijiu, these disciples have only learned it for one day, so it is not difficult to say this. You just need to remember the corresponding transpositions."

The old man shook his head: "I think this is not possible. Even if you want to teach arithmetic, it should be in accordance with the rules and principles, so as not to fall into evil ways."

Lin Heng smiled: "In that case, Kong Jijiu can find some students who study arithmetic. It just so happens that my disciples have also learned multiplication. Why don't we just compete to see who is faster?"

Some things are often more convincing when proven with facts.

Kong Yingda waved his hand: "Don't bother, I know how to count. Why don't I just follow your instructions and see which one is better."

Lin Heng smiled and nodded, then looked at the students: "Everyone, although you have just learned this vertical multiplication formula, it must not be difficult for you. Why not compare it with Kong Jijiu?"

Everyone was immediately embarrassed.

Comparing numbers with Kong Jijiu?
Although he is a great scholar, he also has a deep understanding of other subjects. Is it too far-fetched to ask them to compete with Kong Jijiu after they have just learned multiplication?Lin Heng then said: "It's okay, everyone can just relax. I guess Kong Jijiu is also here to test your learning results. Could it be that you are lying to me when you say you understand?"

Someone immediately said: "Of course not. If you understand, you really understand. How could you lie to Lin's consort?"

"exactly!"

Lin Heng looked at Kong Yingda with a rather provocative smile: "Since we are competing, let's all compete together. Only when everyone completes the questions I asked will it be considered complete. On the contrary, Kong Jijiu only needs to be faster than anyone else to be considered a winner. How about it?" "

come together?

Everyone hesitated immediately, but then looked at the books in their hands.

Since Prince Consort Lin said this, he has strong confidence in them. If they have the opportunity to prove themselves, they will not let go of this opportunity!

Kong Yingda's face looked a little ugly, Lin Heng's words were really a bit arrogant.

Do you really think he's a jerk?
In that case, let them take a look.

The student on the side asked: "Confucius, would you like a pen and paper?"

Kong Yingda snorted: "No need."

Let you, Lin Heng, see if your so-called better method is crooked!

Seeing that everyone was ready, Lin Heng smiled and said: "Then I will give you a question, everyone, listen up!"

Old man, you don’t even need a pen and paper, you won’t be able to be arrogant later.

Let you see how the numerical knowledge that is 1000 years ahead of the Tang Dynasty is a dimensionality-reducing blow to you.

"The first question is two times two."

Everyone was a little confused. Isn't this from the multiplication table?Isn't the answer obvious?

Lin Heng said: "Write it, is it possible?"

When everyone heard this, they quickly wrote things down, but Kong Yingda didn't even raise his eyes.

Seeing that everyone was almost done, Lin Heng said again: "The second way, 22 times 22."

Everyone was stunned and went straight to the difficulty level!
But according to the rules just now, they also quickly listed the vertical answers and gave the answer. Kong Yingda frowned slightly, but this amount was not a problem for him.

"Third way, 220 two times 220 two."

The old man's eyes widened. Are you kidding yourself?
How is this calculated?
But he looked at the students present and began to perform vertical calculations almost without raising his head.

He planned to get closer and see what the student closest to him was doing, but unexpectedly, the student immediately covered himself up.

"Confucius, we are competing, no peeking!"

Kong Yingda smiled awkwardly: "I'm just curious, ahem."

This thing can't be calculated mentally, if you have paper and pen.
But he didn't ask for pen and paper just now. If he wanted to ask for it now, he would inevitably lose face.

For such a large amount, it is difficult to calculate mentally. It would be much better if you have an abacus...

Lin Heng looked at the confused Kong Yingda with a smile and slowly asked the last question.

"The last step is 2000 two hundred 22, multiplied by 2000 two hundred 22..."

Kong Yingda snapped the case and got angry and said: "Lin Heng, you are embarrassing me! I don't believe that someone can calculate such figures without having to calculate them!"

(End of this chapter)