Daqin: I was overheard by Zulong

Chapter 243
Ying Zheng didn't talk nonsense, took the pen and paper, and began to list the vertical arithmetic formulas on the white paper.

After all, it is the emperor of the ages, but after learning the vertical formula of multiplication and the formula of nine-nine multiplication from Zhao Yi's heart, Ying Zheng directly began to list the vertical formula on the topic in front of him.

"You'll be fine, I'll just demonstrate it once." Ying Zheng had an inscrutable expression on his face.

"This question is 760 multiplied by fifteen, and the vertical calculation is 76 multiplied by fifteen, five six thirty, five seven 35, one six is ​​six, and one seven is seven."

"In other words, adding up and down, it is three thousand eight hundred plus seven thousand six hundred, and the number is eleven thousand four hundred, right?"

Zhang Cang, who stood watching from the sidelines, felt his brain buzzing when he saw that Ying Zheng had calculated the calculation result in two or three times.

"This, how is this possible, this is impossible, how could it be so fast?" Zhang Cang had a frantic expression on his face.

The question he gave Ying Zheng was actually a question he had calculated before, but it was not the piece of paper on which the final result was drawn.

The final result was already in his mind. It took him half an hour to calculate this problem, and he made two calculation mistakes, but the final result was still correct.

But how long did it take for Yingzheng to drink a cup of tea for a normal person before and after, so it worked out, and the result was completely correct. How could this not surprise Zhang Cang?

And Zhang Han, who witnessed all this, directly opened his mouth wide, his face full of disbelief.

He originally thought that Ying Zheng was making trouble unreasonably, but he didn't expect that Ying Zheng actually figured out the problem.

Because he also helped Zhang Cang calculate this question, so he was very familiar with the final result. Seeing that Ying Zheng wrote the correct number after a few strokes, he didn't know what to say.

"Plop!" Zhang Cang knelt down directly to Ying Zheng, "Your Majesty is a great talent, and the old minister bows down!"

Seeing Zhang Cang kowtow to Ying Zheng, Zhang Han was startled, but he knew that Zhang Cang was in the court, so it could be said that no one would accept the calculation all the way, let alone kowtow because of the calculation.

But now he actually kowtowed to Ying Zheng, and it was because of a topic, who would believe it?
My son is really my lucky star, Zhang Cang surrenders to me with a ninety-nine multiplication formula and vertical calculation, this feeling is really great!

Ying Zheng had a satisfied look on his face, and felt happy after receiving Zhang Cang's obeisance.

And after Zhang Cang kowtowed three times to Ying Zheng, with eyes full of shock, he still knelt down and said: "I beg your majesty, can you teach me the calculation method you just used, I am willing to pay any price, please The breath is complete!"

With that said, Zhang Cang began to kowtow to Ying Zheng again, as if Ying Zheng didn't teach him, he would kowtow to death.

In Zhang Cang's eyes, Ying Zheng's calculation method just now is definitely the best calculation method. With his ability, he may not be able to figure out the key point in his entire life.

Of course, Zhang Cang couldn't let go of such a great opportunity. Even if the person he was pleading with was the emperor, he was willing to learn the method at all costs.

After all, in Zhang Cang's eyes, nothing is more important than counting.

"Get up, get up, the small arithmetic method is not worth mentioning, I will teach you that, get up!"

Ying Zheng's vanity was greatly satisfied. Naturally, he was in a very good mood and promised to teach Zhang Cang how to count.

Zhang Cang immediately got up from the ground, quickly brought clean white paper, laid it out for Ying Zheng, and waited for Ying Zheng's professor.

"Actually, my calculation method is very simple. First of all, let's not rush to calculate, but remember the rules first. I call this rule the nine-nine multiplication formula."

"Nine-nine multiplication formulas?" Zhang Cang looked confused, and watched Ying Zheng code the nine-nine multiplication formulas on the white paper like a yard.

"This..." Zhang Cang couldn't help following Ying Zheng's writing, and read out what was written on the paper, "One gets one, one gets two... eight nine 72, nine nine 81, hiss... ..."

Zhang Cang read it very carefully. He was good at counting, so he could understand such simple calculations at a glance, but after he read all the content carefully several times, his eyes suddenly became round.

Originally, Zhang Cang thought that these simple formulas were just sample problems that Ying Zheng used to explain, but after he discovered the rules, he suddenly understood that the problems that Ying Zheng calculated just now seemed to be based on this nine-nine multiplication table.

"As long as you are familiar with this nine-nine multiplication formula, any calculation will no longer be a problem!" Ying Zheng began to give real examples.

Still on the topic just now, Ying Zheng broke down every detail for Zhang Cang, carefully explaining which step needs to use multiplication formulas, which step is addition, and how to sum it up...

Ying Zheng spoke very carefully, so even Zhang Han, who was listening on the sidelines, understood it right away.

At this moment, Zhang Han looked at the ninety-nine multiplication table written by Ying Zheng, and felt that it was like a legendary scripture in the playbook. With this, counting would no longer be a nightmare for him!
Of course, Zhang Han's views are somewhat one-sided, but Zhang Cang understands much better than him. After listening to Ying Zheng's words, he immediately took out a blank white paper, wrote a vertical multiplication formula at will, and then began to use Professor Ying Zheng's method. Calculation.

Not long after, Zhang Cang came up with the result. This question was a question that his disciples had already worked out after a long period of calculations, so when Zhang Cang found that the calculation result was exactly the same as the result obtained by his disciples...

"Your Majesty is a genius!" Zhang Cang was ecstatic, "Oh my God, they are exactly the same, so the title can be calculated like this. Your Majesty, you are simply a god, you are simply too powerful!"

Zhang Cang screamed and jumped, just like an old child, completely forgetting his identity.

"Your Majesty, this old man has really spent his whole life in painstaking efforts, but he has not yet achieved the breakthrough that His Majesty is counting on. You are the one who counts everyone. This old man worships and kowtows to you!"

At this time, Zhang Cang didn't know how to express his admiration for Ying Zheng's new algorithm, so he couldn't think of a better way to express it other than kowtow.

Zhang Han was dumbfounded. Although he was not like Zhang Cang, he could already see that Zhang Cang fully approved of Ying Zheng's new algorithm, and his reverence for Ying Zheng couldn't be increased in his heart.

"Okay, now that you understand everything, I will hand over the accounts of the internal treasury to you." Ying Zheng laughed loudly, patted Zhang Cang on the shoulder, and walked away.

"I obey the order!" Zhang Cang immediately agreed, and then immediately threw himself into the intense calculation.

Seeing Zhang Cang holding the account book and calculating like crazy, Zhang Han was shocked again.

He originally wanted to ask Zhang Cang for help, but he wasted all his efforts, and he was still reluctant. As a result, after being tortured like this by Ying Zheng, he actually...

(End of this chapter)