Wu Feng and Wu Yu's brother and sister were obsessed with it, Wu Yu even forgot to bite the jerky, if he could calculate the account without learning abacus, it would be too powerful.

Wu Feng asked her, "Girl, can you elaborate on what kind of mantra it is?" ”

Both of them looked at her, Menghuan was a little embarrassed, and pursed her lips, "Then I'll tell you, don't laugh at me." ”

Wu Feng shook his head, "Of course not, the girl just said it." ”

Menghuan cleared his throat, and then read it to them, "One by one gets one, one by two gets two, one three gets three...... Ninety-nine-eighty-one. ”

After reading it all, not only the two of them, but also Cui Hong, who were stunned on the side.

What is this? Completely incomprehensible.

Wu Feng coughed, not feeling at all ashamed to ask a woman younger than himself, "If you memorize these well, you can settle the account?" How do you do it? What does it mean to get one and get two? ”

Menghuan saw that they were really interested, so he told them in detail, "One by one gets one, that is, one is equal to one, one and two get two, which means that one two is equal to two, these are very simple, in order to be eloquent, add it, as for the latter one, it is the same, three three get nine, which means that the sum of three three equals nine." ”

Wu Yu was very smart and hurriedly said, "Then three five fifteen is the sum of three fives equals fifteen?" ”

Menghuan smiled and nodded, "That's it, as long as you memorize this mantra, the arithmetic is very simple." ”

Wu Feng also understood, and thought for a while, "What if it is more than nine, such as one hundred and thirty copper coins, plus one hundred and ninety-two copper coins, how can this be calculated?" ”

Dream Ring is not in a hurry, "Just take it apart and count it, one hundred plus one hundred, thirty plus ninety, and finally one two, a total of three hundred and twenty-two." ”

Wu Yu blinked, and hurriedly asked Wu Feng to calculate with his abacus. The answer came out, it was indeed three hundred and twenty-two, and the brother and sister cast adoring glances at her.

Menghuan was embarrassed by them, and said a little awkwardly, "If you want to learn, I can also teach you, first memorize the mantra just now, and then it will be much easier." ”

Wu Feng immediately nodded, "Okay, of course, I want to learn, I'm sorry for you." ”

He hurriedly asked Cui Hong to get a pen and paper, originally wanted Menghuan to say that he could write by himself, but remembered that Menghuan could also write, so he handed the pen to her.

Menghuan was a little embarrassed, and hurriedly pushed, "My handwriting is not good-looking, so you should write it, I'm afraid you don't know what I wrote." ”

Wu Feng smiled and said, "It's nothing, I also want to see how you write, you write, we all know each other." ”

Menghuan picked up the pen and wrote down the mantra in his heart next to each other, trying to come up with his best words.

After she finished writing, she pushed forward, "It's already written, you see if you recognize it, if it's not good-looking, you just say it, I'll say it again, you write it yourself." ”

Wu Feng took it and looked at it, and said with a smile, "Very good, it's already very well written, I know this handwriting." ”

He handed the pieces of paper to Wu Yu, "Yu'er, you take it down and copy it yourself, it's mine." ”

Wu Yu pouted and said, "Why is it yours?" This is written by Sister Menghuan, she is my companion, so this should be mine, you can copy it yourself if you want it, or you won't give it to you. ”

Wu Feng glared at her, and Wu Yu immediately muttered, "Okay, just write, what's the big deal." ”

She originally wanted to write again tomorrow, but who knew that Wu Feng had been looking at her, she knew what her brother meant, so she could only reluctantly take a pen and paper to the side to write, and Cuihong lit a lamp for her, afraid that she would hurt her eyes.

There was no Wu Yu talking on the side at this time, Wu Feng was stunned, but he didn't know what to say.

"This arithmetic method is really good, Mr. can't, no one has taught it yet, I didn't expect to learn it today, thank you for being willing to teach us."

Menghuan hurriedly waved his hand, "No, no, no, I also learned it from my sister at home, I didn't learn it well, and I still have to calculate it for a long time if it is a little complicated, but my sister will be able to figure it out soon, and nothing can stump her." ”

Hearing her say this, Wu Feng was interested in the sister in her family, it should be the person Yu'er said before, but she hadn't seen it, and she thought that it was the sister of her classmate in the school, and she wanted to meet even more, this family is so powerful, there are so many capable people.

Wu Yu's handwriting was still very fast, and he copied it after a while, and took it to Wu Feng to take a look, "It's already written, brother, it's dark now, you go back quickly, we have to rest too." ”

Wu Feng glanced outside, then came back to his senses, and hurriedly said, "Okay, I'll go back first, if there is anything you don't understand, can you still come and ask?" ”

Menghuan hurriedly said, "Of course you can, what's not to do with this......"

She actually doesn't know much about the concept of companionship, and she is not a subordinate, but she also has to respect the young master of the young lady, not to mention that this is still the young master of the county master's family.

Unexpectedly, this young master was very polite to her, which was completely different from what she imagined in her mind, so she was confused for a while.

Wu Feng stood up and was about to leave, and patted Wu Yu on the head, "You memorize it for me, you must be familiar with it, otherwise you will still learn arithmetic with Mr." ”

Wu Yu snorted, "Don't worry about it, I'm sure I'll be faster than you." ”

"It's not big, but it's not small." Wu Feng smiled and walked away with the pieces of paper.

Menghuan was supposed to live in a room by herself, and there was still a vacant room in this small courtyard, but Wu Yu liked her, so she had to let her live together, and then the two of them slept in the same bed, anyway, the bed was quite big, and it was not crowded at all.

Menghuan rarely spends the night outside, some recognize the bed, sleep on this big bed for a while and find it difficult to sleep, Wu Yu has fallen asleep on the side, she turned her head to look, today is sixteen, the moon is full, Wu Yu's appearance can be seen clearly.

She couldn't help laughing, Wu Yu was so cute, chattering during the day, and still talking in her dreams when she fell asleep at night, isn't she really tired?

Turning over gently, she still couldn't sleep, she looked at the moonlight sprinkled in the window lattice, and couldn't help but think of what Wu Feng said.

Unconsciously, he actually thought about their conversation, and after realizing what he was thinking, Menghuan couldn't help but blush.

How can this be done, it's really embarrassing, and I think about these things at night.

She turned to her side and prepared to sleep, and remembered Wu Feng's admiring gaze again, and couldn't help but smile, it turned out that she had really learned something over the years, and even scholars wanted to learn from her.

It's really good, thanks to Sister Siqi, otherwise she would still think that a woman's reading is useless.