Cai Yi naturally also saw the joy of the eldest daughter's eyebrows and infinite look, especially the shy look, she rarely showed, his heart is even deeper, the daughter actually has such a deep affection for this Liao, but what to do?

This Liao gave himself a good initial impression, but it may not be worthy of his daughter, not to mention let his daughter go to him as a concubine!This is impossible!

However, Cai Zhen also knew his daughter's temperament, and determined that he would not change, and if he did not agree, her daughter would be very sad, but he did not want to see it.

At this point, Cai Qian's heart could not help but be bored, and he was even more angry with the Liao in front of him.

Then see the daughter's happy look, and Zhang Liao is quite calm, more angry on the occasion, in his view, his daughter is the best, can favor this man, is the blessing of this man's life, he is still indifferent!It's really hateful!

This is the father's mind, while worrying about the daughter like this guy, while angry this guy even reacted flat, of course, if Zhang Liao reaction, Cai Qiao will also be angry, have married a wife and also to provoke my daughter!

It seems contradictory, but it is so reasonable, in short, Cai Qian how to look at this Liao in front of him is not good.

After more than a year, Zhang Liao once again saw the red face of the times, at first there was some confusion and confusion, but understood her mind, her mind must be calm, but calm down, and then eagerly, with his cheeky skin, a moment of punchline, heard Cai Yu's mouth smile, face radiantly radiantly, look at the face of the beautiful face of the day, see the side of the Cai and Cai Xia is not able to see the present day, she is not able to see the face of the present day, why she looked at the face of the present, and she looked at the same, and the face of her.It is getting darker.

However, Cai Qiao has a rich experience after all, he does not know the scene on the original Hong Nong Dao, only to think that his daughter was fascinated by Zhang Liao, so he decided to suppress Zhang Liao with his own erudition.

Therefore, he turned to the deputy smile and squinted, and said, "Wenyuan, listen to Luo Er's mastery of mathematics, just as the old man knows a little or two, and is about to ask you for a consultation."

Zhang Liao saw Cai Zhen's sudden smile, first of all, but he was best at looking at the words and eyes of the people, even if he understood Cai Zhen's plan, he couldn't help but enjoy it.

If Cai Ding relies on the cleavage or the rhythm to suppress him, it is estimated that he will be able to fight him well, but he chose a more partial number!

As for the number of tricks . . . Zhang Liao grinned and respectfully hugged his fist: "Don't dare to ask for advice."

Cai Qiao looked at Zhang Liao's posture and set his mind at the time: "Then it will be a matter of course, the old man heard that you have great talents, but you can't let the old man down, but also hope that Li Er did not see the wrong person."

Speaking of this, Cai Zhai looked at her daughter, and the old man's intention was already a red fruit.

Zhang Liao could only make a helpless look, holding the fist: "So, respect is better than obeying, but also ask uncle to give advice."

He nodded his head, and immediately ordered Cai Qi to calculate.

On the other hand, Cai Zhen was a strange white man, but she knew that the number of people in the heart, no match, not worse than her father, but at this time pretended to be a fear and helplessness, clearly in front of her father dressed as a pig to eat the tiger.

And although she admires the mind of her sweetheart and foresight, but for his study is really dare not compliment, if the father chooses to test the study, I am afraid that this sweetheart can not even hold on to a round, directly swept out of the house.

But the father chose the number of art, so that her heart can not help but be funny, and feel that this is the fate?

Soon, Cai Qi took two cloth sacs, poured out the calculation, is hundreds of small bamboo sticks with a finger, used to calculate the number.

Huaxia has paid attention to mathematics since ancient times, and in the spring and autumn, there were "nine-nine multiplications of song tricks", and by the time of Han, there were already "Nine Chapters of Arithmetic", including multiplication, approxiation, squares, fields, porridge, porridge, small and wide, commercial skills, equal loss, insufficient income, equations and shares, etc., which involve the addition and subtraction of multiplication, square, open, area, volume, positive and negative numbers, shares, proportions, etc.

The calculation can be arranged into one to ten numbers, and there are two kinds of vertical and horizontal methods, when calculating, the position with the vertical type, the ten-digit horizontal type, the hundred-bit with the vertical, the thousand with the horizontal, and so on, the zero is empty.

This method of calculation is very early and very good, but the problem is that every time the calculation is too much, it will often use hundreds or even more, and if it is wrong, there will be errors.

At this time, the "nine chapters of arithmetic" appeared, just a literal narrative, did not put forward the concept of systematic calculation, and did not have any derivation and proof, so the calculation is extremely profound for ordinary people, difficult to promote, and good people often because of the complicated methods, to consume hundreds of times of energy, but also easy to make mistakes.

Because of this, Cai Qiao only used the number of techniques to test Zhang Liao, in his mind, Zhang Liao is not more than 20 years old, go out to practice martial arts, read and practice calligraphy, where have time to study the magic.

Zhang Liao saw Cai Zhen pick up a bag, put open the shelf, and gave him a sac, he smiled, put the hand into the bag, in Cai Zhen's distient look, there are some shy words: "Uncle, in the next no talent, created a number and a rule as a calculation, more than this calculus."

“Self-created?More than a hundred times?”

Cai Wei looked at Zhang Liao, then frowned, a little more unhappy in his eyes, but the 20-year-old boy dared to create his own numbers and rules?

He sleeved and calmly said: "Young people are not too tall and far away, this calculation and algorithm are countless ancestors to push the performance, can easily despise!"

Zhang Liao laughed and said, "Uncle does not listen to the boy, and then make a conclusion."

After all, Cai Qiao, who is elegant and elegant, forced to endure the idea of directly driving people, snorted: "So, the old man must learn the so-called self-created numbers and rules."

Zhang Liao looked to the side of Cai Qi: "A Fu, go get some charcoal pen."

“The carbon pen?”Suzuki: “What kind of pen is that?”

Zhang Liao said, “Taking some unburned fine wood from under the stove is.”

Although Cai Qi was puzzled, he still did it according to what Zhang Liao said.

Cai Zhen is here black face, his impression of Zhang Liao at this time turned bad and disgusted, only think that this young man is too arrogant, but also shameless, this time the daughter is afraid to be wrong.

He glanced at his daughter, but he saw that his daughter was still smiling and looking at the boy, his eyes were full of tenderness, and the old face was darker when he boarded.

Not long after, Cai Qi took several unburned wooden strips, Zhang Liao chose one of them, and the black charcoal burned at the top wrote ten numbers on a blank piece of paper in front of him, which was Arabic numerals, but it was shamelessly said to have been self-created.

Zhang Liao pulled on the paper while he said, “This is one, this is two... this is nine, this is zero...”

Cai looked at the nine strange symbols written by Zhang Liao, and until the last zero, he was stunned: “What is zero?”

Zhang Liao remembered that the zero figure appeared at the latest, and the application was the latest, because this number will break the rules and invalidate many algorithms, but this number is extremely important, and can make up all the virtual positions.

“Zero, none, such as ten, one hundred, one thousand, is represented by a vacancy at the back of the table, while the number may be replaced by zero.”Zhang Liao wrote while explaining.

With his explanation, Cai's look was more and more shocked, and because he was proficient in the analysis of numbers, so as soon as he listened to Zhang Liao's explanation, he immediately understood the importance of this number, which is almost a milestone in the role of the number!

Cai Zhen looked at the young man in front of him, there is no longer a talent of disgust and disdain, but from the heart of the shock, do not mention the young man's own digital symbol, only the emergence of this zero, enough to prove its talent!

He held out his slightly thin hand, trembling and stroking the small circle on the paper, and looked up and looked at Zhang Liao: “Is this zero fruit really self-created?”

“Exactly.”Zhang Liao, this shameless guy received a look, anyway, the person who created this number has many years to be born.

Cai Zhen took a deep breath and suddenly looked forward to these symbols, as well as the rules he just mentioned.

Zhang Liao drew a few double digits, three digits, explained: "These digital combinations, because of their different positions, so the value is different, this right position is one, the left is ten, and then the left is a hundred, so these three numbers, is 111, than the calculation, to be simpler and more clear, if used for accounting, it is extremely convenient."

Cai looked at the combination of numbers and repeatedly thought about it, because he had already adopted the decimal system at this time, so he quickly understood Zhang Liao's statement, but suddenly looked up and looked at Zhang Liao: "But how to calculate?"

The biggest role of calculation is to put the stick to carry out four operations, if Zhang Liao these numbers can not be calculated, then simple, the meaning is not much, can only be used for recording.

Zhang Liao laughed, "Uncle said what it would be, the boy's demonstration was."

Cai Ying had already forgotten to suppress Zhang Liao at this time, but immersed in excitement and expectation, immediately said a few tricks, and Zhang Liao easily used vertical to calculate the results, Cai Qiao did not even have to calculate, know that these results are correct, he was shocked in his heart, busy with detailed inquiry Zhang Liao's mystery.

In fact, vertical calculation, mainly based on a multiplication distribution law, as long as you understand this, you can easily understand, even if you want to explain to Cai.

But at this time, a clear voice suddenly came from outside the Caifu door: "Sister Cai, Dongjue came to visit."

Hearing this voice, Cai Zhen's face suddenly looked difficult, and Cai Ying also raised his eyebrows and showed a disgusting look.

"Here's the big fly again, it's so damned."The little boy also pouted his mouth.

Cai Li saw Zhang Li frowned and subconsciously explained: "Although I wait for not to say anything, but this Dong Ju is always disturbed by the house, his identity is not ordinary, and Ahon has no way."

Zhang Li squinted with his eyes and nodded, “I’ll deal with it.”

“Oh?”Cai Qiao looked at Zhang Liao in unbelief: “Can you withdraw this person?”