Back to Datang with weapons

Chapter 30 Zhang's Arithmetic

After testing his skills, Zhang Twelve walked back satisfied.

Chen Qiaoxi's room was still lit with orange candlelight, and because it was too late, the window was closed, but the thin figure was reflected on the window lattice, stretched very long by the candlelight.

Zhang Twelve didn't need to look to know that there must be a thick account book in front of the figure at the moment, so he couldn't help laughing angrily:

This silly woman doesn't love herself too much, does she?
You still have a few years of youth, aren't you afraid of making yourself old?
Zhang Twelve originally wanted to go back to the house, but after thinking about it, in this Lu family, it seems that this woman is the only one who treats him well. When Lu Fujing bullies her, she criticizes her - although it doesn't work, at least she takes care of him in her heart ah!

You treat me like a gentleman of the country, and I will return it as a gentleman of the country!

Thinking of this, Zhang Twelve walked over, raised his hand and knocked on the door.

The figure in front of the window was startled, and said softly, "Who is it?"

Zhang Twelve said, "Miss Chen, it's me."

Chen Qiaoxi naturally recognized who the voice belonged to, but she was a little puzzled, why did he knock on her door so late?

His face turned red again, but he still unconsciously walked over and opened the door.

"Master Zhang, it's so late, what can you do?"

However, he leaned against the door and stretched his waist lazily. Anyway, that meant—speak up if you have something to say, want to come in?no way!

But Zhang Twelve didn't understand what she meant, instead he "thumped" in his heart, um, then should I go in or go in?

"I think the time of the day is almost over, and Ms. Chen is still reading at night by candlelight. Could it be that she is still calculating the account book?"

"Hey, thank you Mr. Zhang for your trouble. The little girl has mediocre qualifications. The work that should be done during the day has to be delayed until very late every time. It is a joke for Mr. Zhang."

It turned out that I was thinking too much, and misunderstood other people's good intentions, so I couldn't help being a little shy and embarrassed. Fortunately, Zhang Twelve didn't know what she was thinking, otherwise she would be ashamed to death.

"Miss Chen, can I come in and look at your account book? Maybe I can make Miss Chen's arithmetic speed several times faster!"

Zhang Twelve is not bragging. Apart from other things, just replacing the Chinese characters one to nine with Arabic numerals can greatly improve the arithmetic time of this era, not to mention that he is also proficient in advanced addition, subtraction, multiplication, and division. Calculations—don't laugh, addition, subtraction, multiplication, and division are really advanced in this era, okay?
Chen Qiaoxi curled her lips, a little dumbfounded: Is this person really stupid or fake?

If I say that I have mediocre aptitude, that's just modesty, okay?Do you think I'm really slow in arithmetic?I'm much faster than those accountants, okay?
Your poems are written better than mine, but the arithmetic may not be as good as mine!
And also said that it can make your arithmetic speed several times faster, you are too good at bragging!
It can be seen from this that Chen Qiaoxi is not convinced by what Zhang Twelve said.

But the body moved uncontrollably, giving up the position of the door, and then said charmingly: "Then please trouble Mr. Zhang!"

Zhang Twelve walked in directly.

Chen Qiaoxi looked at the door with a guilty conscience. There was nothing but the mottled tree shadows reflected by the moonlight. She bit her lip and closed the door.

…………

In the long night, the stars and candles, the fragrance of Ai, the lonely men and widows, inevitably make people's minds flutter.

Zhang Twelve pinched his thigh and secretly reminded himself: Remember what you are here for!

Then he sat at the table, picked up the writing brush on the table, and began to look through the ledger.

Not to mention, I really don't have a clue when I take a quick look at this ledger, it's full of small characters, it's easy to get dizzy when I read it, I really don't know how this woman read it.

Frowning, Zhang Twelve subconsciously bit the other end of the brush—this was a bad habit that Zhang Twelve developed when he was in school. He wanted to bite the pen as soon as he picked it up, but he didn't expect it to be the same in another era. .

But don't say it, a big family is a big family, even this brush tip is fragrant and sweet, and the taste is much better than the ones he had bitten before!

…………

After watching for a while, Zhang Twelve sorted out the clues.

This account book looks messy because of the full Chinese characters, but in fact its difficulty is not difficult for an elementary school student.

Addition, subtraction, multiplication and division!The primary school students of my Great Heavenly Dynasty can even control the king’s pesticides and eat chickens with ease. This thing is not a problem~~

Now that he had figured it out, Zhang Twelve quickly converted the above Chinese characters into simple Arabic numerals and arithmetic symbols for addition, subtraction, multiplication, and division. It took only a quarter of an hour to get everything done!

I checked it with the numbers on the ledger, and found that most of the above data were correct, only two missing numbers were added, so the calculation was wrong.

Zhang Twelve immediately told Chen Qiaoxi about the result, and Chen Qiaoxi then calculated the two mistakes by himself, and the final answer was exactly the same as Zhang Twelve's. It is doubt, but shock and worship!
It took him only a quarter of an hour to calculate what she needed many days to finish?

Sure enough, it is faster than her algorithm, and it is not a star and a half faster!
This man can really surprise himself!
Staring at the strange number symbols on the paper, Chen Qiaoxi couldn't help asking curiously: "Mr. Zhang, what are these?"

"Numbers and Arithmetic Notation."

number?Arithmetic symbols?
But Chen Qiaoxi has grown so big, why has he never seen it before?
"What is this method called?"

"Zhang's Arithmetic Method!"

After thinking for a while, Zhang Twelve said.

(Do you want to see poems, weapons, or martial arts? Although Zhang Twelve can do it-but I want to see your comments, otherwise it will be so uncomfortable to play alone!)
(End of this chapter)