"Alas, it's troublesome enough!"

Yuan Chang looked at the pile of ledgers in front of him, with a sad look on his face.

Yuan Chang just hates trouble, but that doesn't mean he's afraid of trouble. He also had a faint feeling that the reason why Guo Jia kept this pile of seemingly troublesome ledgers to himself was a test for himself. If it meets Guo Jia's requirements, then Guo Jia will stay, and if not, then Guo Jia will leave. Although Guo Jia didn't say anything, Yuan Chang faintly had such a feeling in his heart.

As a think tank, Guo Jia is naturally able to handle these ledgers, and Guo Jia is confident that he can solve them within twenty days with his own ability. For Yuan Chang, he does not ask for twenty days, as long as it is within thirty days. After all, Yuan Chang is a master-type character, and the key is to employ people, not to have strong ability. Otherwise, Yuan Chang will solve the matter alone, what else will his subordinates do?

The reason why Yuan Chang was given a thirty-day deadline was because Guo Jia wanted to give himself a reason to stay. In the beginning, Yuan Chang was not among the targets he was working for. It's just that Yuan Chang's words, Chen Gong, and his sister Guo Ying's words made him give Yuan Chang a chance, and this opportunity needs to be grasped by Yuan Chang.

In ancient times, a literati had a lot to learn. There are six basic talents, namely etiquette, music, archery, royalty, calligraphy, and mathematics.

Etiquette, etiquette, music, archery and archery techniques, royal and chariot driving techniques, calligraphy, literature, calligraphy, mathematics, arithmetic and number theory knowledge.

These are the most basic requirements, the basic talents that every student should have. Therefore, in ancient times, many strategists would be equipped with swords, they were not good-looking, but really a little force. Just like Xu Shu, people are incognito because they have taken revenge and killed people. There is also Zhou Yu, both civil and military, known as a Confucian general. There is also Zhuge Liang, who is in a wheelchair all day, he just prefers to use his brain, he doesn't want to make a move, with his force, it should be no problem for one or two strong men; just look at the descriptions of Zhuge Liang's son Zhuge Zhan and grandson Zhuge Shang, you can deduce that Zhuge Liang is also both civil and military.

Some schools do not spend this time, preferring to let students read more books and make more review materials in the classroom, don't they know that the body is the capital of the revolution, and if they don't have a good body, how can they have the spirit to study? Although the times have developed, some ideas have become more backward.

Guo Jia's arithmetic ability is not bad, but he has the same temperament as Yuan Chang, that is, he hates trouble and is lazy. Moreover, it was for the postgraduate entrance examination of Yuan Chang, so Guo Jiacai did not plan to deal with that pile of account books.

However, Guo Jia is destined to miscalculate.

In later generations, even Yuan Chang, who graduated from junior high school, will not be weak in arithmetic. Moreover, Yuan Chang also knows simpler Arabic numerals, as well as algorithms, nine-character formulas, to deal with this pile of seemingly troublesome ledgers, it is simply not simple.

No matter how smart Guo Jia is, he would never have imagined that Yuan Chang had mastered such powerful arithmetic as a traverser. Perhaps, if Yuan Chang was taken by the gods to see the future development in his dream, he would not be able to make Guo Jia understand the prospects for the development of arithmetic in later generations. I believe that it won't be long before Guo Jia will be frightened by Yuan Chang.

"Lord, can I help you?"

Dian Wei looked at Yuan Chang's bitter gourd face and asked weakly. After drawing circles for a long time, for the sake of the wine in his heart, and in order to express himself in front of the lord, Dian Wei went out. Even Dian Wei, who was dizzy when he saw those words, planned to do something to help his lord.

"Lord, Yun is here to help you. ”

"My lord, I also do my best. ”

Dian Wei is purely for the sake of the table, as well as for the sake of fine wine. However, Zhao Yun and Han Sui faintly felt that this was a test that Guo Jia gave Yuan Chang, so although their arithmetic was not very good, they also wanted to help Yuan Chang share a little.

Guo Jia didn't say before that he couldn't let people help, Yuan Chang, as the lord, if he knew how to use people and solve these account books within thirty days, Guo Jia would also admit it. Therefore, Guo Jia also acquiesced to the shots of Zhao Yun, Dian Wei and Han Sui.

"Haha, just kidding, it's just such a trivial matter, and I want you to help, it's just underestimating me. ”

Yuan Chang laughed, but refused the help of the three of them. Since Guo Jia tested himself, he had to surprise them with a small show of his hand, although he wanted to be low-key and his personality was lazy. However, the few people in front of him were people he could trust, and there was no need to be low-key in front of them.

Guo Jia was a little surprised, looking at Yuan Chang's expression, he seemed to be very confident, not a swollen face and a fat man, could he really solve these ledgers within the time he expected?

Guo Jia smiled slightly, didn't say anything, and dealt with the two piles of copywriting in his hands earlier, so that he could have more time to taste the wine, didn't he?

Seeing that Yuan Chang insisted on not letting himself help, Dian Wei continued to squat in the corner of the wall to draw circles, drawing circles is also a very promising profession, maybe one day, circles can also kill people, and Zhao Yun and Han Sui stood at the door to guard to prevent anyone from coming in and disturbing. The only thing they can do now is to believe that Yuan Chang can solve it, so as to pass Guo Jia's test and keep this resourceful man by his side.

Yuan Chang brought a brocade dun and sat down, put the ledger in front of him, picked up the first one, and prepared to start calculating.

Guo Jiayu, who was looking at the copywriting, looked over and felt a little strange, Yuan Chang was going to start checking the account book, why didn't he come up with the calculation chips, could it be calculated like this, is this possible?

The so-called arithmetic chips are small sticks of the same length and thickness made of bamboo, wood, animal bones, ivory, metal, etc., about 10 centimeters, and every 270 pieces are a bunch. When it is time to calculate, they are taken out and arithmetic is performed according to certain permutations, similar to addition and subtraction.

At the end of the Eastern Han Dynasty, in fact, the abacus had appeared, and the inventor was Xu Yue, a mathematician from Donglai who was also from Tai Shici, called the "Youzhu abacus". It's just that it's not the simplest, and it's not widely used, so people often use abacus, and the popularization of abacus was only formally formed in the Song Dynasty after the research of historians. Perhaps, it was precisely because of the prosperity of commerce in the Song Dynasty and the emergence of Jiaozi that the abacus was popularized.

When Guo Jia finished checking a copy recorded in Jane, Yu Guang glanced at Yuan Chang again, only to see Yuan Chang writing something quickly with paper and pen, and then turned to the next page.

Guo Jia frowned slightly, Yuan Chang shouldn't be calculating, maybe he was making some marks, and then calculating, otherwise there is no reason to be so fast?

Just when Guo Jia was stunned for a while, Yuan Chang had already put down one account book and picked up another.

Guo Jia put aside the thoughts in his mind, no matter how Yuan Chang dealt with these account books, he still had to deal with his own affairs first, and then he would be able to take the wine gourd, drink the wine, and see how Yuan Chang dealt with it.