McGonagall paused for a moment, and quickly realized that Amy must have felt that she had not been able to help because she had not succeeded in registering on her own just now.

Putting down the bowl in her hand and looking at Amy's little eyes, McGonagall couldn't help but feel a little distressed, it seems that the little guy is still a little unconfident. In fact, in his eyes, Amy, who is only more than four years old, can do these things is very good.

"Who said, how can our millet be useless, we can sell four servings of fried rice today, most of which is due to millet. Secondly, when the cashier was cashier, four bowls of fried rice were 2400 copper coins, and Xiaomi was right, but Grandpa Mobai didn't have so many copper coins, so he could only use this more beautiful and valuable gold coin as a replacement. McGonagall looked into Amy's eyes and shook her head earnestly.

"Really?" Xiaomi's eyes grew brighter and brighter as she listened to McGonagall's words, but she was still a little unconfident.

"Of course it's true, Xiaomi hasn't seen gold coins before, and it's my father's fault, because my father didn't even earn a single gold coin before. If I have to say who is wrong, it is that I didn't tell Xiaomi earlier that silver coins, gold coins, dragon coins and copper coins can be used to buy things, I should reflect on it, and I hope our little baby Amy can forgive. McGonagall nodded, a look of self-reproach on her face.

"No, how can we blame my father, my father is the best for Xiaomi." Amy shook her head vigorously, lowered her eyes, and said a little aggrieved, "Teacher Luna taught me, but ...... But so many copper coins have become so few gold coins, I just can't be ruthless, and there are too many to change, so ......"

McGonagall's eyebrows twitched, and she almost couldn't hold back her laughter, Amy's explanation was so cute, but looking at the little guy's somewhat timid gaze, he felt a little uncomfortable in his heart.

The external environment has a great impact on a person's character development, especially at an age like Amy who is slowly shaping the three views and forming habits.

The previous days were too poor, and the contempt of humans and elves for half-elves made her feel a little inferior and had no self-confidence.

Fortunately, Amy is still young, and this psychology is just a little budding, and McGonagall believes that she can slowly help her adjust and become a confident little girl.

"In the future, Amy can't be ridiculed and looked down upon by others anymore, but she must hold it in the palm of her hand and become a happy little princess." McGonagall said to herself mentally.

However, when it comes to arithmetic, the level of mathematics in this world is indeed a bit worrying, worse than the arithmetic level of foreign passers-by in the previous life, and the addition and subtraction of more than two digits have to be calculated for a while.

In a world where culture is not universal, this is not a strange thing, but McGonagall suddenly has some ideas about building Amy's self-confidence.

To say that China is one of the countries with the highest average level of mathematics on the planet, it is natural that the ninety-nine multiplication formula table has made a great contribution as an enlightenment.

"Eat this bowl of fried rice first.,After eating.,Father taught you an arithmetic formula.,After learning it.,It's even more powerful than those students who study in the Chaos School Park.,It's easier to collect money in the future.。 McGonagall reached out and rubbed Amy's hair, placing the bowl in front of her and smiling.

"Really? More powerful than those brothers and sisters? Amy's eyes lit up and she looked at McGonagall in disbelief, in her eyes, the older siblings sitting in the classroom were super powerful with Teacher Luna every day.

"Of course it's true, when did your father lie to you." McGonagall nodded.

"Well, my father will never lie to Xiaomi, Xiaomi will learn obediently." Amy nodded, said seriously, and began to eat obediently.

McGonagall looked at Amy, who was eating cutely, and also picked up the spoon and began to eat, the ninety-nine multiplication formula is an artifact, if Amy is proficient, abusing those children who are still counting and subtracting with their fingers is naturally very simple, and the first step to improve self-confidence starts from here.

After eating, McGonagall put away the dishes and chopsticks into the kitchen, looked at the greasy plates in the sink, didn't want to reach out, hesitated for a moment, and said to the system in her mind: "System, do you sell dishwashers?" ”

"This system is not an electrical mall." The system answers.

"In a word, sell or not? I gave the money. McGonagall pouted.

The system was silent for a while, and then gave a quote in text: "Basic dishwasher, can clean five plates and ten spoons at a time, price: 3 gold coins." ”

"This system is really open-minded, and there is no principle at all...... "McGonagall rolled her eyes, she could be regarded as completely seeing through the bottom line of the system's discipline, but the price was quite acceptable, and she said without thinking: "So cheap?" Then I want one, and the money will be deducted from the credit limit first. ”

"The payment was successful, and the dishwasher was in place." Another row of words floated by.

McGonagall looked at the bright silver dishwasher on the stove next to her, her eyes lit up, this thing looked quite technological, she opened the lid and put a few plates and spoons in the sink, pressed the turn button, and the lid opened automatically in less than a minute, and the plates inside had become brand new and bright.

Modern technology is really convenient, McGonagall put the bowl and spoon away with satisfaction, Amy stood at the kitchen door, looked at McGonagall expectantly, and said, "Father, what are we going to learn?" ”

"Ninety-nine multiplication table, Xiaomi, you wait for me, I'll go get paper and pen, and try to memorize a few lines today." Seeing that there were no guests coming to the door for a while, McGonagall spoke, went upstairs and took a piece of paper and a pen, and then sat down at the table and silently wrote down the stepped ninety-nine multiplication table.

The writing of this world is naturally different from that of the earth, but the common script is somewhat similar to the oracle bone script of Chinese characters, the numbers are the same as the Arabic numerals, and there are always some striking similarities in the development of history.

McGonagall has inherited the memories of her predecessors, so she has a complete grasp of the words and language of this world.

"Father's handwriting is so beautiful." Amy watched McGonagall write the multiplication table, clapping her little hands and complimenting, looking at McGonagall with admiration, she used to think that Luna's handwriting was the most beautiful, but her father's writing was even better than Luna's, as if they were carved.

McGonagall was praised by Amy, looking at it with that adoring eye, when she was a child, she was forced to practice calligraphy for an hour every day and suddenly felt that it was worth it, and this good hand of words was finally appreciated, and said with a smile: "Then there is time for my father to teach Xiaomi to write." ”

"Yes, yes!" Amy nodded happily, and looked at the rows and columns of numbers on the paper with some puzzlement, "Father, is this the ninety-nine multiplication table?" ”