"Can you calculate an eight-digit number by an eight-digit number faster than a calculator?"

Chen Luogeng smiled stiffly and said, "Brother, you have blown too much of this cowhide, right?"

Shen Feng said with a smile: "Nine million nine hundred seventy three thousand three hundred and fifty five thousand four hundred seventy nine thousand five hundred forty-six." ”

"Huh?"

Chen Luogeng looked confused.

Shen Feng spread his hands and said, "This is the answer to multiply 64561654 by 15447799, and I have already calculated it after reading the question." ”

"Shock value from Chen Luogeng +99!"

Chen Luogeng was stunned, his intuition told him that this answer was correct, he was also a mathematical genius who won countless awards, even if he couldn't mentally calculate the answer to the eight-digit multiplication, but the answer to the eight-digit multiplication would be a few digits, and what was the single digit to ten thousand digits of the answer, etc., he could still calculate it.

Shen Feng's answer was completely in line with the rudimentary answer he could calculate.

But Chen Luogeng still said stiffly: "You, you just say a string of numbers, who knows if it's true or false?"

The answer is yes. ”

At this moment, Dai Yu, who had been silent, suddenly spoke: "The answer is indeed nine million nine hundred seventy three thousand three hundred five thousand four hundred seventy nine thousand five hundred forty-six. ”

As soon as these words came out, everyone was shocked, and even Shen Feng was stunned.

Chen Luogeng said hurriedly: "You are in a group with him, of course you help him speak! You said that the answer is true, is it possible that you have figured it out!?"

"Hmm. ”

Dai Yu nodded and said in a low voice: "But I calculated slowly, it took ten seconds to figure it out." ”

The little angel's "ashamed" tone made Shen Feng's old face blush, and at the same time secretly gave a thumbs up.

Awesome, he completely relied on the cheat function of inNB's [application-calculator] to calculate the "instant calculation of thought input".

The little angel really multiplied the eight-digit number by the eight-digit number, and the answer was as difficult as fifteen digits, and it only took ten seconds, and he felt that he was calculating slowly, this is the real big guy!

Chen Luogeng was stunned, he suddenly remembered the saying circulating in the Star Academy, "Daiyu of iron, second of flowing water", which means that the ranking of grades in various disciplines, the second place is always changing, but the first place has always been Daiyu, of course, including mathematics.

Chen Luogeng also often scored full marks in math tests, but occasionally deducted one or two points because of carelessness, while Dai Yu has always been a full score, always first, at least tied for first.

But Chen Luogeng has always been disdainful of this, and he has won all kinds of mathematics competition awards, but he looks down on Dai Yu, who has never participated in mathematics competitions, in his bones.

In his opinion, a full score on the college exam doesn't mean anything at all, and he can get full marks as long as he is a little more careful and serious.

Chen Luogeng has always believed that he is the first in mathematics in Star Academy.

But now it turns out that this does not seem to be the case.

Suddenly killed a teenager who claimed to be from the Imperial Academy and crushed him in the "exchange" about Dilgan's conjecture, Chen Luogeng was still able to comfort himself with "there are people outside the world".

But he always thought that Dai Yu was inferior to himself, but he calculated the eight-digit multiplication in ten seconds and did what he couldn't do, Chen Luogeng couldn't stand such a blow!

"I don't believe it!"

Chen Luogeng looked at Shen Feng and Dai Yu, and said sharply: "I don't believe that you can mentally calculate an eight-digit multiplication in ten seconds! I don't believe that humans can calculate faster than a calculator!"

Shen Feng spread his hands and said, "If you don't believe it, just try it." You take the calculator, I do the math by heart, and we compare to see who can calculate faster. ”

"Just try!"

Chen Luogeng took a deep breath, as a math student, of course the calculator was carried with him, and he immediately took out the calculator from the storage ring.

He didn't believe that people could calculate faster than a calculator!

Besides, he has been single for so many years, and his hand speed is not covered!

"Your Royal Highness Princess, please ask for questions!"

Chen Luogeng looked at the princess and said respectfully.

Even if the calculator and mental arithmetic competition is an unfair competition that is completely beneficial to himself, Chen Luogeng has to be cheeky to accept it, because he can't afford to lose, whether it's because of Princess Toris or his dignity as a mathematical genius, he can't afford to lose!

For the sake of victory, he would rather do whatever it takes!

Shen Feng shook his head and said, "It would be too unfair to let Princess Toris ask the question." ”

Chen Luogeng immediately said in a deep voice: "Does classmate Shen want Daiyu to ask the question? With all due respect, I think the two of you are suspected of fornication! I'm sorry, in my opinion, only Her Royal Highness the princess present is the one who can't be bribed, and it is absolutely fair for Her Royal Highness the princess to ask the question!"

"No, no, no, that's not what I meant. ”

Shen Feng chuckled and said, "I mean, Princess Toris is too unfair to you. If you type in the calculator while listening to the questions, it's completely incomparable, and I don't want to bully people like that. I think it's up to you to make the questions, and you read the questions while you type in the numbers. ”

"Huh?"

Chen Luogeng was dumbfounded, he came to the question? And he was entering the numbers while making the question?

Doesn't that mean that he has finished the question and has already entered the number, and he only needs to press the "=" sign to calculate the answer?

Pressing the "=" sign is a matter of a split second, even if he still has to read the answer, but at most it is a few tenths of a second.

Eight-digit multiplication in a fraction of a second? Crazy, right?

"Oh, yes. ”

Shen Feng grinned and said: "The rule of the problem is to add, subtract, multiply and divide the four operations, as long as it meets the four operations, no matter how many digits are operated, no matter how many times the operation is performed, no matter how long the problem you read, even if you multiply, subtract, subtract, multiply and divide the operation problem for ten minutes, it will be no problem!"

As soon as these words came out, everyone was dumbfounded.

"Shock value from Chen Luogeng +99!"

"Shock from Daiyu +99!"

"Shock from Mu Shiyu +99!"

"From ......"

Chen Luogeng said in a trembling voice: "You, are you crazy?"

How can anyone play like that?

Pretending to be forced also has to talk about the basic law!

You're going to heaven!

The four operations seem simple, but in fact there is an extremely cheating rule, which is called multiplication and division priority.

For example, the question "56663 plus 88855 times 66636 divided by 99965 minus 55855 divided by 33355".

This paragraph is read from left to right, but the actual operation process is 88855 first multiplied by 66636, then divided by 99965, then added to 56663, and then subtracted 55855 divided by 33355!

The operation process does not follow the order of the problem, and the order of the operation may change greatly every time a symbol is added to this operation!

That is to say, in the process of Chen Luogeng's recitation, Shen Feng couldn't listen to a number calculation once, he had to listen to all the questions, memorize all the numbers and operation symbols, and then calculate the result in a few tenths of a second!

If this question is read for ten minutes, and an average of one number plus operation symbols is read every three seconds, it means that Shen Feng has to memorize 200 numbers with more than eight digits and 199 operation symbols, and then he has to calculate these numbers and symbols in half a second.

You can imagine remembering a phone number and a symbol every three seconds, and two hundred in a row!

And after memorization, you have to complete 199 addition, subtraction, multiplication and division operations in a few tenths of a second!

This is simply not something that humans can do!8)