Chapter 20: System, do you still sell clothes?

"Yes, because there are nine rows and nine columns, so it is called the nine-ninth multiplication table. Xiaomi already has some basis for addition and subtraction. It is certainly not too difficult to learn this." McGonagall looked at the neatly arranged ladder. The multiplication table is neat and tidy, and the writing is clear. Satisfied with the pen, he smiles and says.
"What is the little fork in the middle?" Amy asked, pointing at the ‘x’.
"This is a multiplication sign, and the same is the same as multiplication. It means a little more concise." Meg smiled and explained, let Amy sit down in the chair next to him and push the multiplication table a bit. "This multiplication table? Only father, I will, only need to remember eighty, and then learn the decimal, you can solve most of the arithmetic needs in life."
"Wow, my father is very good. The last time Luna told Xiaomi to back down the multiplication table, I need to back 1770 items, and Xiaomi only remembers about 100." Amy looked at McGonagamy with a look of respect. I didn't expect my father to write a good-looking word, but there is even a simpler method of calculating than Luna's teacher. It is really amazing.
Although standing on the shoulders of the ancient Chinese sages, Joseph was a bit not very good, but the feeling of being worshipped by her own girl really made Meg feel too cool. She smiled and pointed at the first item in the upper left corner: "Then we are today. Let's first learn about the first column. The numbers on either side of the multiplication are multiplication numbers, and the latter is the product, which is the result of the calculation..."
McGonagall explained the composition of the multiplication table to Amy in detail. Under the teaching of Luna, Amy did have some mathematical foundations. At least the meaning of each number is understood, and there are certain concepts of addition and subtraction. However, the mathematics of this world has no hexadecimal, so he spent a lot of time slowly let Amy understand the meaning of the hexadecimal.
The most gratifying thing about McGonagall is that Amy didn’t have any doubts about everything he said to him. Even if he completely overturned Luna’s teacher to teach her, he unconditionally chose to listen to him, and soon accepted the decimal multiplication. concept.
"One by one, one or two got two..." Amy followed Meg, and the memory of the little girl was not bad. After reading Meg a dozen times, the first column was remembered.
McGonagall hit the iron and took her through the entire multiplication table twice, giving her a whole feeling.
"But father, how do you remember this?" Amy read it a few times, and looked up at Meg.
"This, the use is big." Meg smiled and pointed at the multiplication table. "Look, we are now selling a 600-copper coin for Yangzhou fried rice, which is just like 6 gold coins. That is 4x6=24, knowing the result directly, you don't need to hold your fingers one more number, you said it is very convenient."
"It's really 24 gold coins!" Amy's eyes lit up at once, just to calculate the 2400 copper coins, but it took a long time to figure it out, but the father gave it to him with this list. This multiplication table is really easy to use, and said with enthusiasm: "Father, I want to learn, I have to learn this multiplication table! If you learn Amy, you can really help your father."
"Okay, then we will study three columns today, and the rest will learn again tomorrow." McGonagall smiled and nodded. The most important thing to learn is initiative and enthusiasm. Amy is both lacking. I believe that I will master it soon. Multiplication table.
At noon, it was past Amy's memorization and multiplication. In addition to the white, there was no second guest to enter the restaurant. It is clear how cool this corner of Aden Square is.
However, after selling four fried rice, Meg has a lot of heart, at least not worrying about the taste of Yangzhou fried rice is not suitable for people in this world. From the reaction of ink white, the effect of fried rice to relieve muscle fatigue is also effective for him. Maybe it will be a frequent visitor in the future. This is a good news.
"Three forty two, three fifty five, three six ... three six ... three six ... three six is ​​too difficult ..." Amy some grievances looked up at Meg, this is her fifth time here The back can't go on, and the tears are turning around in the eyelids.
"Well, then today I will be back to thirty-five, and Xiaomi is already very good. Generally, the first time the children can finish the first column is very rare. The back of tomorrow will be back, step by step is the best." McGonagall put his hand on the multiplication table and smiled and licked Amy's hair, which reminded him of a small video of a little girl who had seen it in the past, and it was the same age and the same trouble. .
"Really?" Amy, who thought she was to be instructed, heard Meg's words, her eyes re-lighted, and her father said that she was better than other children.
"Of course it is true, when did the father fool you?" McGonagall looked at Amy's eyes and nodded seriously.
"Well, my father will not lie to Xiaomi, and Xiaomi must be behind the scenes tomorrow." Amy nodded, her face was bright and smiling, and she was more confident.
McGonagall put the multiplication table behind the counter, this will pass the meal, and no one will come to eat, watching Amy's messy hair, simply walked over to the door and flipped the open sign, locked the door from inside. Then pick up Amy's little hand: "Go, father to help you wash your hair and become a clean little fairy."
"Would you like to burn hot water first and take a wooden bucket?" Amy asked as she looked up at McGonagall.
"No, there are water pipes that go directly to the hot water upstairs, and a bathtub." McGonagall shook his head with a smile.

Like the kitchen faucet?
Amy was amazed. The thing that the father called the faucet was amazing. Just turn it and the clear sweet water came out like magic.
"Well, yes." McGonagall nodded and took her little hand to go up. Amy’s understanding of the world was just beginning, so she was only curious about the modernization of the house, and there was not much entanglement.
The first time I saw the bathtub, Amy quickly adapted. Sitting in the bathtub and fluttering with both feet, holding a white foam in her hands and giggling, watching Meg happy said: "Father, this bathtub is fun, And these bubbles are so sweet, so I smell it."
"Well, this is a shower gel for bathing. Now I have shampoo in my hand. It is used to wash my hair. After washing, my hair will be very clean and fragrant." Meg said with a smile, some hands The clumsy shampoo was applied to Amy's hair and said softly: "If you close your eyes, the shampoo will be very uncomfortable when you run into your eyes."
"Well, Xiaomi wants to be as fragrant as his father." Amy closed her eyes obediently.
McGonagall gently rubbed Amy's hair, although the movement was a bit clumsy, but it was better than careful, carefully separating the hair that was glued together, but Amy's hair is still very soft.
Bathing and washing the hair is really a technical activity. Anyway, after McGonagall helped the little guy to shower and hair, his clothes were almost wet, but he looked at the little guy wrapped in a bath towel and put it on. In the small skirt that passed by, McGonagall was a little bit annoyed. He tried to ask: "System, do you still sell clothes?"