Farm girl, she is always digging holes to bury people

"Okay." Qi Nan agreed happily.

The purpose of today is to convince him.

Anyway, she already knows how to solve this type of questions, and she won't be afraid of doing another 1 questions.

Then Yu Qianyang immediately modified two pieces of data. The data was calculated by presetting two answers and then bringing them in.

This time he wanted to see if this girl could solve these two answers as quickly as before.

"All right."

It took Qinan less than a minute to calculate it. Because the calculation formula just now was still there, she just did some division and the like.

"So fast." Yu Qianyang couldn't believe it, picked up the paper and read the answer.

There were still calculations in front of him that he couldn't understand, but the final result was indeed correct.

With these two results, it is certain that Qinan can really do these questions.

And not only can she do it, she also has her own simple algorithm that can quickly calculate this kind of problem that is difficult for them.

"You are right, I am willing to admit defeat." Yu Qianyang gave Qi Nan a fist-cup salute, and then took the piece of paper away as if he had received some extraordinary calligraphy treasure.

"Can I ask you some more questions? Just... purely about arithmetic."

Yu Qianyang didn't expect that one day he would talk to others so gently, and explained dryly: "I'm only interested in this aspect. If I don't fully understand these topics today, I'm afraid. I have to study without eating or drinking for several days again."

"Okay, bring me a few more pieces of paper, and let me explain to you what this basic calculation is.

There are two unknown numbers in the nest, this one represents the chicken, this one represents the rabbit..."

Qi Nanfang kept talking for a long time, but Yu Qianyang was still confused.

It's not because he is stupid, but Qinan's ideas and numerical abbreviations are their modern ones.

A pure ancient would not understand these things so quickly.

With no other choice, Qinan was forced to teach Yu Qianyang some mathematics knowledge.

From Arabic numerals to the 99 multiplication table, she filled several pages and handed them to Yu Qianyang.

The first thing he should learn is to recognize numbers, just like a kindergarten child. Teach him to recognize, read, and write. Only by understanding the basic things this time can he understand the following things easily.

然后她又给余千阳讲了关于3角形的1些东西，像刚才那个直角3角形的题目，就用勾3股4弦5的解法去解就行了。

It’s not that there aren’t more difficult questions, it’s just that this is the only thing Qinan knows now.

She has completely forgotten about odd and even changes, and the symbols that look at the quadrants.

This triangular question was the only question that came to her mind at that time, and this question also helped her win the competition.

Now Yu Qianyang has long been convinced by Qi Nan. The things Qi Nan gave him were something he had never seen before.

He discovered that after using these things, some algorithms can be calculated easily.

In the past, he had to write a large piece of paper to calculate the result, but now he can calculate it based on some simplified numbers. This is a leap forward for him.

"That's it for today. When you go back, listen carefully to Aunt Wu and don't go around like this day and night without eating or drinking.

After recuperating my body, I will contact Bald Brother and the others and listen to their arrangements, and then we will go to Liangcheng together. "

"Okay, master."

Yu Qianyang now regards Qin Nan as his master. What she said was more effective than anyone else's.

Aunt Wu didn't expect that Qin Nan would subdue her son with just one move.

Seeing that powerful people like Qi Nan and others are doing this kind of calculation, now she has no objection to Yu Qianyang doing these things.

The relationship between mother and son had eased a lot. After getting the medicine from Zhang Qingyuan, Aunt Wu took Yu Qianyang back.

Qinan and the others have another very important thing to do today.

That is to collect some medicinal materials that are missing from the fake death pill.

"Let's go!" Zhang Qingyuan put a small backpack on each of them, then took a small hoe for digging medicinal materials and led the two of them off.

"The mountain road is rugged and dangerous, so just follow me closely later. Don't act alone, otherwise if you get lost in the mountains, I won't be able to find you easily."

"Well, don't worry, the two of us promise not to cause any trouble for you."

Zhong Cheng and Qin Nan promised, but they were not so optimistic in their hearts.

The required medicinal materials are very rare and rare medicinal materials, which are not easy to collect from ordinary mountain streams.

They generally grow in places with extremely harsh and steep environments. When collecting herbs in such places, there is a high probability of danger.

Zhang Qingyuan walked in front to clear the way, Qin Nan walked in the middle, and Zhong Cheng walked behind.

Each of them held a long stick in his hand, and while walking, they used the stick to tap the bushes on the roadside.

Although it is already the autumn and winter seasons, there are still some birds and animals, snakes, birds, fish and insects.

Hit them with a stick to alert them.

"There is no road ahead, so put on the coats you have prepared."

Zhang Qingyuan stood at the front and looked into the distance.

All you can see are bushes that are taller than people. This place has been uninhabited for a long time. If they want to climb to the top of the mountain, they can only rely on them to carve a path through the bushes.

The shrubs here are also very tricky, and the tree trunks are covered with dense spikes. If they don't wear the thick long coats prepared later, if they accidentally touch these spikes, they may get injured.

They walked very slowly, especially after seeing these thorny vine-like shrubs.

Zhang Qingyuan even made a gesture to Qi Nan and the others behind him, and then stopped in his tracks.

"Uncle Master, have you found the medicinal materials?" Qi Nan asked softly.

"See those yellow flowers twined on the vines in front of you? That is the first medicinal material we are going to pick today, yellow vine flowers.

It grows on this vine and clings to very tall shrubs. It is not easy to pick it.

Don't underestimate the shrub at the bottom. Its thorns are poisonous. I will have to pry out a few thorns later. If they are ground into powder, they will also be a good hand in making poison. "

Qi Nan and the others didn't understand the pharmacological matters, but they understood what the medicine they wanted to collect was.

After Zhong Cheng gave Qin Nan the bamboo pole, he took out his sword and knocked down some shrubs around him.