Liu Yong was so frightened that he took a few steps back and fell to the ground with a "poof". Pen, fun, pavilion www. biquge。 Fortunately, the dog pounced, but did not move again, but the red tongue, sharp teeth and vicious eyes still made Liu Yong creepy. At this time, I only heard a burst of laughter like silver bells, mixed with Zhuge Liang's footsteps and blame. Liu Yong froze, and after a closer look, it turned out to be a fake dog.

Zhuge Liang grabbed the invitation to help Liu Yong up, and blamed: "How can you be so rude to your guests? He apologized to Liu Yong again, "My wife is greedy for fun, so she can make these dolls, and she frightens her son, which is really rude." ”

"Out of the way." Liu Yong shook his head and said while looking at the fake dog, "I didn't expect Miss Yueying to do it so realistically, Liu Yong admires!" "I saw that the dog was made of pine wood, covered with dog skin, tongue with red cloth, and jade as eyes.

Liu Yong was amazed and asked Zhuge Liang, "How does this dog move?" ”

"This dog has a spring in its belly. Brother Chongru just tripped the lead rope and triggered the trap. ”

Liu Yong was amazed again, it is said that this Huang Yueying is the founder and founder of the world's invention of robots, which is really extraordinary.

At this time, Huang Yueying had already walked in front of her and saluted Liu Yong: "Frightened Gongzi, the slave family is here to apologize." ”

Liu Yong hurriedly returned the salute, only to see that Huang Yueying had a pretty face, but her face was slightly darker and her hair was yellow, how could she be said to be ugly. He didn't know that the ancients regarded a woman's white face and black hair as beautiful, and her facial features were secondary.

Huang Yueying is bold and manly, and Liu Yong and Zhuge Liang are people who respect women very much, so the three of them sat down on their knees in the pavilion, set up a stove to cook tea, and chatted while tasting. After a while, Huang Yueying, who was competitive by nature, asked Liu Yong directly: "I heard that Gongzi is very good at arithmetic. The little girl is not talented, and she wants to have a discussion with her son, can her son fight? ”

Liu Yong nodded and smiled, Huang Yueying was overjoyed, and asked Zhuge Liang to answer the question correctly, and the least time was used to win. Zhuge Liang wrote five questions on the paper: addition, subtraction, multiplication, and division, and instructed the boy to take a pair of calculation chips and put them in front of the two of them, and then lit the incense, and then lit the topic.

In terms of calculation, the ancients were far inferior to the modern people. Liu Yong was secretly amused in his heart, pretending to think hard, and peeked at Huang Yueying with a calculation chip, tinkering for a long time, before writing the answer on paper.

Zhuge Liang saw that Liu Yong didn't need to count chips, he only wrote and drew on paper, and the speed was extremely fast. The incense had just burned to a quarter of the point, and Liu Yong had already put down his pen with a smile to indicate that it was finished. Zhuge Liang was shocked and suspicious, because Huang Yueying had only done three things at this time.

By the time Huang Yueying finished handing in the papers, most of the incense had already been burned. Zhuge Liang took a pair of answers from the two, and he was not bad at all, and he was suddenly surprised. He knew that his lady's arithmetic ability was super strong, far from being comparable to ordinary people, but it was much slower than Liu Yong, how could this not surprise him?

Huang Yueying answered attentively, and didn't know Liu Yong's situation, so she asked Zhuge Liang: "Who is faster than me and Gongzi?" ”

Zhuge Liang smiled bitterly for a while: "The lady and Brother Chongru have the same answer, but the available time is much worse. Huang Yueying shook her head and said she didn't believe it, and Zhuge Liang said: "I also know that the lady doesn't believe it." It's better to do this, the lady personally came up with the question, how about seeing Chongru's answer? ”

Huang Yueying squinted at Liu Yong and said with a smile: "Can the son fight?" ”

Liu Yong smiled and said, "Sister-in-law, please ask the question." ”

Huang Yueying casually said four five-digit lianjia, Liu Yong listened and memorized, sketched on the paper, and after a while, he came up with the answer and reported it. Huang Yueying didn't dare to be gullible, and after checking the calculation for a long time, the answer was really the same as Liu Yong, and she was even more surprised. Gritting her teeth, Huang Yueying multiplied by several digits again, but this time Liu Yong was even more peculiar, she didn't use pen and paper, she had just finished counting, and Liu Yong blurted out the answer. This time the calculation is multiplication, which is extremely difficult, Rao is a master of arithmetic like Huang Yueying has to calculate with the help of a calculation chip for a long time before he can come up with the answer, and he doesn't want to be the same as Liu Yong. Zhuge Liang and his wife glanced at each other, dazed and couldn't believe their eyes.

Huang Yueying settled down and said convincingly: "Gongzi is really a god. The slave family has something unclear, why the previous simple topic still needs to be calculated on paper for a while, and in the end, the more difficult one can be rushed out, what is the reason? ”

Liu Yong replied: "Don't hide it from my sister-in-law, in fact, Liu Yong can give an answer immediately." Let's start with the topic of our competition. Because it was relatively simple, I wrote down the process of calculation. ”

"Childe, can you let the slave family take a look?"

"Absolutely." Liu Yong grinned and said, "I'm afraid that my sister-in-law won't understand." ”

Huang Yueying's face showed a little disdain, took the paper and looked at it, and couldn't help but be dumbfounded, only to see that there were strange words written on it, and she didn't know any of them, so she couldn't help but ask: "What did Childe draw?" Zhuge Liang was also confused when he watched from the side, so he had to look at Liu Yong to see how he explained.

Liu Yong took another piece of paper and wrote as he spoke: "There are some numbers on it, which are 0, 1, and 2,...... More than 10, such as 100, 1000...... It is composed in this way, so that it is much more convenient and faster to write numbers than the numbers used in this dynasty, and they are called Arabic numerals, which were actually invented by Indians. Seeing the puzzled looks on the faces of the two, Liu Yong had to continue to explain: "These two are two countries outside the Western Regions, so don't worry about it for now." Then this is the symbol for addition, subtraction, multiplication, and division. Mrs. Sister-in-law, you see if I write like this much faster. ”

Huang Yueying pondered for a while and said, "This way of writing is indeed faster and more convenient, but how does the son calculate it if he doesn't need to calculate it?" The slave family is willing to ask for advice. ”

"Addition and subtraction are simple." Liu Yong immediately gave two examples, and said, "Multiplication and division are a little more troublesome, and you have to memorize the ......oral decision" Liu Yong wrote another multiplication problem, and calculated the process while reading the ninety-nine multiplication oral decision.

Huang Yueying watched the whole process and asked again: "There is no difference between the oral duel and that of this dynasty, but it is indeed much faster to calculate it with this kind of number." He turned his head and said to Zhuge Liang: "Husband, why didn't we think of replacing it with other symbols?" ”

Zhuge Liang said with a smile: "I am afraid that this is also obtained by many people after arduous and unremitting exploration. Now Brother Chongru has this ability, you can sincerely ask for advice. ”

Huang Yueying suddenly looked at Liu Yong and asked, "Wait a minute." I think it will take a while for Childe to do this multiplication problem, and according to this method, wouldn't it be more difficult to do multiplication? Why can the slave family blurt out the answer just after the question? Zhuge Liang couldn't figure it out, and also looked at Liu Yong.

Liu Yong smiled slightly and said: "This is another speed algorithm used by Liu Yong, which is called abacus mental arithmetic, also called abacus mental arithmetic. ”

"Mental arithmetic? What does it mean, please make it clear to Childe. ”

Liu Yong scratched the back of his head and explained: "The most important thing about this method is to have an abacus in your brain. ”

"Abacus?" Zhuge Liang and Huang Yueying were full of doubts. Liu Yong said in his heart, abacus is one of the greatest inventions of our Chinese, and compared with the world-famous "four great inventions", it is not much better, and even a little smarter, but now it is difficult to explain, so I have to say vaguely: "There is an abacus in the next residence, and tomorrow I will take it for my sister-in-law to see." ”

Huang Yueying sighed leisurely, presumably because she was itching, Liu Yong looked at it, playful, and said with a smile: "Mrs. Sister-in-law has given Liu Yong so many questions, how about I also come up with one?" ”

Huang Yueying was stunned for a moment, this Liu Yong is so powerful, it must be an extremely difficult question. However, she had a stubborn personality and refused to admit defeat, so she said: "Please ask the son to ask the question." ”

Liu Yong smiled and wrote on the paper: 1=4,2=8,3=24,4=?

Liu Yong was afraid that the two would not understand, and prepared to add Chinese numbers next to the Arabic numerals, Huang Yueying hurriedly said: "No need to annotate, I already know what Arabic numerals you are." ”

Liu Yong couldn't help but admire, it was really a show of wisdom, and he mastered a new skill in an instant.

Huang Yueying held the paper and thought intently with Zhuge Liang. According to the general logical thinking, 1=4;2=8, that is, 4×2;3=24, then 4×2×3, then the corresponding number of the next 4 should be 4×2×3×4=96. Zhuge Liang and his wife muttered quietly, discussing their thoughts, the truth in it, and verifying the final result.

The more Liu Yong looked at it, the more interesting it became, and a strange smile appeared on his face. Huang Yueying peeked at it, felt uneasy in her heart, and discussed it with Zhuge Liang again for a while, still feeling that 96 was the correct number.

Huang Yueying said cautiously: "Childe, we have the answer." ”

Liu Yong pretended to be serious and said, "Sister-in-law, please speak." ”

"It should be 96, right?"

Liu Yong said categorically: "Wrong! He actually smiled in his belly, because this problem was not a logical calculation problem, but a "brain teaser" specially used to trick smart people, and the smartest couple in the Three Kingdoms era were really fooled.

"What's wrong with 96?" Huang Yueying was unconvinced, "Isn't that how it was calculated?" Huang Yueying showed the results of her calculations. Childe thinks it's wrong, so how much do you think the result is? ”

Liu Yong pointed with his hand and said, "Sister-in-law, please take a look." Liu Yong has already told you. 1=4, so on the other hand, isn't 4 equal to 1? After Liu Yong finished speaking, he finally couldn't hold back his laughter. Zhuge Liang and Huang Yueying were slightly stunned, and immediately figured out the truth, and couldn't help laughing.

When Liu Yong returned to the inn, it was already time to turn on the lights. Zhou Cang was already impatient to wait, and when he saw Liu Yong coming back safely, he put his mind at ease first. Liu Yong asked about Wei Yan and Wen Ping's martial arts competition, and Zhou Cang's eyebrows suddenly fluttered, "These two people didn't say much, they drew their blades and fought, only to kill the sky and the earth, the sun and the moon were dark, and the sun and moon were ......" Zhou Cang's tone of telling the story was still presentable.

Liu Yong quickly stopped his play and asked, "I won't say how to fight, which one won in the end." ”

Zhou Cang shook his head and said, "I still haven't decided the winner." But I think the kid who wields the knife is a little bit stronger. ”

"How does it compare to Brother Zhou?"

"I'm afraid it's pretty much the same." Zhou Cangwei was a god.

"I'll give you an idea, how about keeping what you like?"

Zhou Cang was overjoyed and said with a smile: "Good brother, you can talk about it quickly." (To be continued.) )