Traveling through time and encountering war, I took the whole village to escape famine

Yun Duo had been here for two days but was still a little uncomfortable with the toilets here. The wooden frame was covered with grass and surrounded by straw mats. The two wooden boards were shaky half a meter above the ground, and the pit was so deep that people were afraid of falling in when squatting on it.

Fortunately, their house has separate rooms for men and women. Some houses have rooms for both men and women, and they would cough outside to signal each other before entering to avoid embarrassment.

Yun Duo secretly thought that fortunately he had a space where he could find a place where no one was and go back to the toilet. This was hard for his grandfather, as his grandfather couldn't come to him every time he needed to go to the toilet, so he could only let the old man get used to it slowly.

When she has the ability in the future, she will definitely design a modern toilet for her family.

Yun Duo symbolically washed up and returned to her room. She bolted the door and entered the space. She did not go directly to the bedroom but went to the living room first. Yun Duo did not see her grandfather in the living room. Yun Duo changed her shoes at the entrance and put her shoes next to her grandfather's shoes, so that if her grandfather got up earlier than her tomorrow morning and saw her shoes, he would know that she was also in the space.

Feeling a little tired today, she didn't take the stairs. Instead, she took the elevator to the third floor and returned to her room. She took a shower but didn't wash clothes this time. If she kept washing clothes in the space with her mind, her mother would be suspicious. She didn't want her parents to discover the space for the time being for fear that they would worry.

The next morning, Yun Duo was awakened by a knock on the door and heard her grandfather calling her, "Granddaughter, it's time to get up."

Yun Duo got out of bed in a daze, opened the door, and asked, "Grandpa, what time is it?"

"It's almost five o'clock. We have to go to the city early today." Yunhai replied to his granddaughter.

Grandpa, please go wait for me in the living room. I'll go out and find a place where no one is around to take you out.

After Yun Duo finished speaking, she flashed out of the space, put on her clothes and walked out of the room. Everyone in the family had already gotten up. Today, Yun Chenxing also got up especially early. He stood there rubbing his sleepy eyes.

When Yun Chenxing saw her sister leave the room, she ran over and held Yun Duo's hand, "Sister and brother said that we two should run with you every morning to exercise. Xiao Si and brother are waiting for you here."

Now Yun Duo knew why Xiao Sibao got up so early. He was tricked by his second brother who had the black sesame filling.

Yun Duo saw her mother cooking, her father reading in the yard, her eldest brother boxing, and her second brother and little Sibao waiting for her to come out for a run at the door.

"Little Sibao is so good. Wait for me here for a while. I'm going to the toilet. When I come back, I'll go jogging with you and my second brother."

Yun Duo walked around the west wing. Behind the west wing was a thatched firewood room. Behind the firewood room was the toilet. Yun Duo walked to the open space between the firewood room and the toilet. After looking around and seeing no one, she entered the space and brought her grandfather out.

Yun Duo discovered that taking grandpa into the space was different from taking objects into it. It was not possible to do it with mind power and he had to pick him up in person.

"Grandpa, I'm going out first. You wait here for a while before I go out." After saying that, Yun Duo went back to the yard and ran in circles with her second brother and youngest brother.

The yard was small and it felt a bit dizzy to walk around in circles like this, so Yun Duo took the lead and ran out of the yard, leading his second brother and younger brother to run around the house again. They ran very slowly at first, but after running two circles, Yun Chenxing couldn't stand it anymore and stopped to breathe heavily.

"Little Sibao, let's recite the multiplication formula together so that we can recite it while running.

"Sister, what is the multiplication formula?"

"The multiplication formula is the song of nine nines. Do you know it, little Sibao? If not, I can teach you."

"Xiao Si can't sing, sister, please teach me. Xiao Si wants to learn."

Yun Duo looked at Yun Chenxi, and Yun Chenxi said to her sister a little embarrassedly: "I don't know how either."

He couldn't figure out how to do this cloud. The multiplication formula has been around in China since the Spring and Autumn Period and the Warring States Period. He thought that since Xiao Sibao was so good at math, he must have known this.

"Little Sibao, how do you help others count copper coins when you don't know the multiplication formula?" Yun Duo asked her brother puzzledly.

"My second brother taught me how to use an abacus. Just add all the copper coins together and the figure will be calculated," Yun Chenxing looked at Yun Duo with his little eyes as if to say what was so difficult about it.

"But you didn't bring an abacus either," Yun Duo became even more confused.

"The abacus is in your heart. My second brother said that you can put the abacus in your heart and just think about it." Yun Chenxing looked at her sister as if to say that her sister was so stupid that she didn't know this.

Yun Duo was completely petrified. She was so overwhelmed by her elder and younger brothers. What kind of brains do they have? It's all a test of memory. There's no comparison!

"Xiao Sibao, the multiplication formula is also called the multiplication table. Multiplication is a basic arithmetic operation that multiplies two or more numbers to get a new value. The most common definition of multiplication is a shortcut way to add the same numbers together. For example, 5 times 6 can be understood as the addition of 6 5s, or the addition of 5 6s." Yun Duo explained to her second and third brothers what the multiplication formula was.

"When I have time, I will teach you arithmetic. There are four basic operations in arithmetic: addition, subtraction, multiplication and division.

Addition and subtraction are very simple. Xiao Si should already know how to do it. Today, I will teach you to recite the multiplication formula. After you have memorized it, I will teach you multiplication and division in a few days when I have time.

Yun Duo ran in front, followed by Yun Chenxi and Yun Chenxing. Yun Duo's clear voice sang "One plus one equals one"

I heard Yun Chenxing reciting “One plus one equals one” in her cute little voice behind me.

Yun Duo knew that her second brother would not recite along with her, so she did not force him to continue reciting “One and two make two”.

Yun Chenxing "One Two is Two"

Clouds: Two plus two equals four

Yun Chenxing "Two two equals four"

……