Early the next morning.

Ningfu East Road Courtyard, in an ordinary courtyard.

In the middle of the courtyard, a black-painted blackboard is filled with numbers that are very different from those written in the Central Plains.

Since the previous dynasty, the imperial court has stipulated that the numbers in the account books must be written as "one, two, three, four, wu, lu, qi, 捌, jiu, and pick".

But the numbers on this blackboard are "1, 2, 3, 4, 5, 6, 7, 8, 9, 0".

Arabic numerals have actually been introduced to the Central Plains since the Tang Dynasty, but they have been ignored, and even now, there are no Central Plains people who use such "vulgar" Fanbang numbers.

However, Jia Qiang, in the past six months, has taught these to many people.

There are twenty or thirty low couches in the courtyard, on which sit Daiyu, Baochai, Xiangyun, Yingchun, Tanchun, Xichun, Baoqin, Ping'er, You Shi, You Sanjie, Qingwen, Xiaojiao'er, Xiaojixiang, Zijuan, Ying'er, Cuimo and twelve opera officials, and eight female stewards selected from the West Road Courtyard Hall, who are sensible and helpful to Ping'er on weekdays.

"Addition, subtraction, multiplication and division within three digits, you can probably do it well. But how to apply it, you still need to exercise more. There are many such account books in the guild hall of the West Road Courtyard, so you can do more exercises. But math is much more interesting than addition, subtraction, multiplication and division, and addition, subtraction, multiplication and division are only the simplest applications. There are also higher ones, such as chickens and rabbits in the same cage, with a total of 88 heads and 244 feet. ”

After Jia Qiang finished speaking, she looked at her young and bright faces, full of hard thoughts, her brows were tangled, and she couldn't help but laugh happily.

After getting a few white eyeballs, he laughed and said, "What I teach you today is called a binary equation." ”

As he spoke, he listed the equations on the blackboard, and then solved the equations in detail by using the problem of chickens and rabbits in the same cage.

Daiyu, Baochai, Tanchun, Xiangyun, Baoqin, Ping'er and other smarter ones have bright eyes when they listen.

They are not unaware of the way of arithmetic, and there is also a problem of chickens and rabbits in the same cage in the original "Sun Tzu Sutra".

It's just that the solution of "Sun Tzu's Sutra" is much more cumbersome, and the Sutra envisions that each chicken is "golden rooster independent", that is, standing on one foot. And each rabbit stands on two hind legs and on two legs like a human. So, half of the total number of feet that appeared on the ground, that is, two hundred and forty-four divided by two, that is, one hundred and twenty-two. In the number one hundred and twenty-two, the number of chickens' heads is counted once, and the number of rabbits' heads is equivalent to two counts, so from one hundred and twenty-two subtract the total number of heads eighty-eight, and what remains is the number of rabbit heads, that is, there are thirty-four rabbits, and of course there are fifty-four chickens.

But this kind of algorithm is really not something that many people can understand, and it is much more complicated.

As Jia Qiang taught, using Arabic numerals to list equations, and then generation into it, it is easy to calculate the result.

Of course, it's not easy.

For example, Yingchun is confused, it's not that she doesn't work hard, she really can't understand!

It's also a brainstorm to play Go, but why isn't it so difficult?

Seeing Jia Qiang's smile, Yingchun said angrily: "Isn't the previous addition, subtraction, multiplication and division of accounting learning enough?" What's the use of learning this? ”

Jia Qiang smiled and said, "Second aunt, this question is really good. What's the use of learning this, let me give you an example. For example, the guild hall wants to buy a batch of embroidery, and the total price is three hundred and fifty-eight taels of silver. One of the types of embroidery is pierced by daughters like our family, and one side costs eight taels of silver. The other type is the ordinary embroidery, or the embroidery of the grandmothers, and one side only costs three taels of silver. Q, how many squares should be charged for the first category, and how many squares should be charged for the second category? ”

Seeing that Yingchun's apricot eyes seemed to be able to see a question mark, Jia Qiang smiled and said, "This question should be regarded as an after-class homework, you go down and ponder it." Teaching these, for some people, is to facilitate your better housekeeping in the future, and you must always know more details so that you will not be easily deceived. For others, learn more, and you can take on great responsibilities in the future. ”

Tanchun laughed and said, "What great responsibilities can they take? ”

It's not that she looks down on those drama officials or the stewards of the teaching department, in the whole world, I am afraid that only Jia Qiang will teach them and use them in such a deviant way.

But no matter how much you respect them, you can't let them show their faces?

Jia Qiang raised her eyebrows and said, "There are more places that can take on great responsibilities!" Nowadays, my business is getting bigger and bigger, and I need a public house that specializes in auditing. But the people in the public housing are the most likely to be co-opted and corrupted by the people outside, and there are not many people who can be trusted. I taught them that they could be monitors when they set up public housing. At that time, I don't know how many important accounts need to be looked at by them, and it is not a big task to find out which one is problematic, and the person who makes the ghost is going to lose his head? ”

"Okay, okay, let's all disperse. After listening to it early in the morning, my head was dizzy. ”

Daiyu didn't want to see Jia Qiang, who had won the bickering, too proud, and waved her hand and dispersed.

Jia Qiang also put down the charcoal and invited: "Go to the garden for a walk, breathe?" ”

Dai Yu glanced at him and said, "Don't you still want to give lessons to those pro-soldiers and the officials of the Soldiers and Horses Division?" ”

Jia Qiang smiled: "They can't do it, they are not as smart as you, and they have four classes in a month, and they are all very hard." Because of this, Tie Niu thought about discussing with his sister to move back to Qingta to live. ”

Baochai on the side smiled "poof", saw Jia Qiang and Daiyu looking over, and said with a smile: "That Tie Niu brother-in-law, one hand is bigger than a pen, and holding it in his hand is like holding a small stick." I heard my sister say that it is a bit laborious to write a name, how can I calculate this? ”

Daiyu glanced at Baochai with a smile, and then heard Jia Qiang ask, "Brother Xue and the Xia family's affairs have been decided?" ”

A touch of sorrow appeared on Baochai's pretty face, which was as white as ice and snow, and said, "That girl from the Xia family...... My mom asked people to inquire around secretly, and it was amazing. ”

Daiyu teased: "How can she get it, and can she still beat Sister Bao?" ”

Baochai said angrily: "I'm almost sad to death, you still come to make fun of you!" ”

Daiyu was kind-hearted, and when she saw that she was really sad, she persuaded: "Your sorrow is very unreasonable, don't you know what kind of person your brother is?" It's not good, where do you need to worry about being a sister-in-law? ”

Jia Qiang laughed when she heard this, and Baochai couldn't help but pinch Daiyu's creamy cheeks, and said with a smile: "I saw you hurt Xiangyun like that yesterday, I thought it was really different." I didn't expect it to be as narrow as before. ”

Daiyu glanced at her, and was about to speak, when she suddenly heard Tanchun shouting: "What are you doing?" ”

Jia Qiang was taken aback when she heard this, turned her head to look, and hurriedly persuaded: "Forget it, third aunt, although Baoyu is not a weapon, there is no need to pick him up." ”

Baoyu: "......"

Tanchun was angry and funny: "Where did I say the second brother?" I'm talking about the one who doesn't get in the door well, and the one who is disrespectful there! ”

At the gate of the courtyard, a small brain melon appeared and disappeared, disappeared and appeared, and then disappeared again......

Everyone: "......"

Tanchun's face was blue and red for a while, and in the secret laughter of Daiyu and others, he burst into shouting: "If you don't come in and talk well, I won't spare you today!" ”

Baochai smiled and sighed on the side: "Forced a princess, everyone is beautiful, and she is forced to become a female Rakshasa ......"

Tanchun smiled angrily when she heard this: "Sister Bao is now starting to stab people when she speaks, and I don't know which one to learn from!" ”

Baochai's face flushed when she heard this, and Daiyu looked at her with a smile again, which made her more and more uncomfortable.

Fortunately, at this time, Jia Huan came in with a frown, one shoulder was high, the other shoulder was low, and he seemed to be lame even on his feet, and there was no right place on his body.

He didn't go to Tanchun, but walked up to Jia Qiang, sniffed, and grinned: "Brother Qiang, my mother said that she wanted to invite you as a host, just invite you!" ”

Before Jia Qiang could speak, Tanchun took a few steps forward with a red face and said, "Want to be blind?" Is there any reason to treat guests indiscriminately? Go back and tell your aunt that she has a lot of fun to do less of these jokes! ”

Jia Huan was extremely afraid of his sister, so he bowed his head and said, "I didn't say it, it was my mother who said it...... My mother also guessed that you would say this, so let me tell you, Brother Zhu's daughter-in-law...... It was my mother who said it, not me. Brother Zhu's daughter-in-law can be invited, but I can't? Brother Zhu's daughter-in-law invited for Lan'er, and I invited for Huan'er, could it be that I can't see anyone? ”

"Poof!"

"Ahh

"Giggles!"

should have been worried about Tanchun's face, but Jia Huan twisted his waist and raised his eyebrows to stare at him, which was too expressive!

Seeing that everyone was laughing and tearing up, Tanchun was really, really trembling with breath.

Then I saw her clench her fist and smash it at Jia Huan, who was still learning Aunt Zhao.

Jia Qiangha smiled, stepped forward to hold her arm, stopped her, and said, "No, no, it's still a child." You're more serious, but it's not interesting. ”

Tanchun's face was blue with anger, and his lips trembled and he couldn't speak.

Daiyu gave Jia Qiang a look and asked him to go.

Even if you can't look down on Aunt Zhao and Jia Huan, you still have to give Tanchun's face.

Tanchun's words are ugly, and he hates them to the bone, but only when he loves deeply, he will hate it!

She can scold, but if others scold and look down on her together, it will break her heart.

Jia Qiang thought about it, and there was no big deal at noon, so she looked at Jia Huan and said, "Can't it really be your mother who invited me alone?" ”

Jia Huan sniffed, raised his eyebrows, looked like a liar, and said, "Master, I should come too." ”

"You didn't say it earlier!"

Tanchun yelled at him.

Jia Zheng is here, and Jia Zheng is not there, is that the same thing?

Jia Huan looked scared, and muttered, "You didn't ask me ...... either"

Jia Qiang stopped Tanchun, who was about to kill Jia Huan, and put an arm in front of her, so that she couldn't rush over.

After Tanchun bumped into it three or four times in a row, he didn't know if he was angry or what, his face was red, but he still let go of his hand and didn't want to kill his brother.

Jia Qiang tugged at the corners of her mouth and said to Jia Huan: "Let's go, go to Xifu and have a look." If you're here, I'll sit down and eat two bites. If not, just ask your mother what she means, and the meal will be free. ”

Jia Huan didn't care about Yazi, but Baoyu was a little anxious, and he couldn't even care about the sisters and Jia Huan on the side, grabbed Jia Qiang's sleeve, and said urgently: "Brother Qiang, when you see the master, you must speak for me!" ”

Jia Qiang looked at Baoyu inexplicably and asked, "I'm sorry, who are you?" Do I know you? ”

"Poof!"

Fang Cai's angry Tanchun, at this moment, he saw Jia Qiang's unfamiliar and blank polite question at close range, and he couldn't hold back when he burst out laughing.

The other sisters were also amused, and Xiangyun laughed too hard, and fell to the ground with a "bang......

Du Baoyu was so angry that he stomped his feet and said, "It's not the time to laugh!" ”

Yingchun smiled: "Don't be angry with him, his face is purple." ”

Seeing his tears flashing, everyone felt bored, and Jia Qiang said in a snort: "If the second master asks me, I will say that." Agree or disagree, not sure. The main thing is for you to write books, and you don't write well. It's been more than half a year, and I've written less than 30,000 words. Do you know a booksmith I know, how much has he written in more than half a year? ”

"How much?"

"Two million words!!"

Daiyu hurriedly smiled: "But the big official outside the house? I also like him very much, he works hard, the story is good, clean and unconventional. ”

Tanchun smiled on the side: "Coincidentally, so am I!" ”

Baochai sighed lightly: "It's very good, weird and funny." ”

Baoyu hurriedly said: "From now on, I will definitely write well!" ”

With that, Baba looked at Jia Qiang.

Jia Qiang smiled and said, "Okay, I'll go over and take a look, if the master asks, I'll help you say two good words." ”

Baoyu was overjoyed when she heard this, and she made a fuss again and again.

Jia Qiang nodded, and asked Daiyu again, "Then where are you going?" ”

Daiyu smiled: "What are you stubborn? The second sister, the third sister, and Yun'er are all going to be female celebrities, and I went to find Sister Ping'er and help her reconcile the recent account books. Sister Ping'er is meticulous in her work, but she is a little slow. ”

Jia Qiang smiled: "Okay, but don't be tired, forget it for a while, let's go to the garden together." See what kind of antique furniture you like, what color and style of curtains you like, you can consider it, and then report it to me.

Jia Yun and Xue Zhen told me that the makeup python embroidery pile used in the garden, one hundred and twenty silk curtains of various colors, and 200 curtains were hung yesterday. There are 200 orangutan felt curtains, 200 gold rattan red lacquer bamboo curtains, 200 black lacquer bamboo curtains, and 200 colorful thread coiled flower curtains. But I'll let them not rush to hang it, and if you like different styles, you can let them prepare it again. Don't be too troublesome about this, where you live, you must follow your own heart, otherwise, isn't it a fly in the ointment? ”

Daiyu pursed her lips and smiled when she heard this: "It's hard for you to be so careful." ”

and smiled at Baochai, Tanchun, Xiangyun and other sisters.

Baoyu's eyes were really hot when she saw it, and she begged Jia Qiang with a blank eye: "Brother Qiang, although I can't live in the garden at night, can I always have a place to stay during the day?" ”

When the sisters looked at it, Jia Qiang smiled and said, "There is an excellent place to admire the moon for you......

A hint of strangeness flashed in Daiyu's starry eyes, and she said, "It won't be that place, right?" ”

Jia Qiang nodded and said, "Yes, it's the Jade Emperor Temple." ”

"Hahahaha!"

Jia Huan suddenly burst out laughing, and was knocked on the skull by Tanchun before closing his mouth.

Daiyu glanced at Jia Qiang and said, "What do you have to provoke him to do?" ”

Baoyu wept silently: "......"

Jia Qiang followed the advice and said, "Forget it, it's not the Jade Emperor Temple, and it's not the Dharma Nunnery...... One more thing, when your mother misses the Buddha, you can go in and try it. What is prepared for you is Tubi Villa! Very nice place......"

Daiyu pursed her lips when she heard this, holding back a smile.

She didn't think it was good. But Jia Qiang laughed at the name, and the contour was homophonic with "soil force......

Baoyu can't care about that much, as long as there is a place for him to settle down!

After Jia Qiang left and the sisters dispersed, Baoyu ran to the back garden.

Because he had Jia Qiang's permission, he could enter.

It's just that when he was tired like a dead dog and ran to the Tubi Villa built at the foot of the mountain, his whole heart was cold.

Although it is called a mountain villa, it is clear that it cannot be inhabited, but it is just an open hall!

Looking ahead, you can see everywhere from afar.

Looking back, he could see two close-up scenes, and he was terrified when he saw it:

Dharma Temple, and the Jade Emperor Temple!

Could it be that the heavens are going to kill me?

……