Chapter 742 Arabic Numerals

"Brother Yun, what are these little twists and turns you wrote down on paper?"

When Fengyun was observing the growth of rainbow rice in various paddy fields, the action of recording in a notebook aroused Fengbei's curiosity.

"Yun, I'm also very interested in Beimei's question. What are you remembering?"

Mulanzhi, who was assigned by Fengyun to take care of the rice fields, also showed an expression of interest.

"I am recording the growth of rainbow rice in each paddy field, so as to find out the planting method with the highest yield and the least consumption of spring water."

Fengyun did not hide his intentions, and he did so in preparation for leaving Lei Ze one day. After some thought, he decided to entrust the task of planting rainbow rice to the Baicao Tribe.

With the double cold springs, although planting rainbow rice has become easier, he will bring back more precious plants in the future, and he will also catalyze ordinary plants. Compared with novices, Baicao has rich planting experience The Horde can clearly do better.

In fact, he would appoint Mulanzhi to take care of the rice field to make preparations in advance, let her be familiar with and understand not only the process of planting rainbow rice, but also the characteristics of the double cold spring water, so that it will be easier to use in the future. Handy.

"I see."

Hearing this, both Fengbei and Mulanzhi showed expressions of enlightenment, but then they became curious again: "What do these little things with twists and turns mean, why haven't we seen them before?"

When Fengyun promoted characters, he took into account the acceptance of primitive people, so he did not teach them the more abstract Arabic numerals.

However, this does not mean that he will not teach all the time, but he is going to wait a while, let the primitive people have an adaptation process, and then start teaching. After all, the convenience of Arabic numerals is incomparable, otherwise it will be impossible before he travels. It will not be available worldwide.

"They actually represent various numbers, from zero, one, three... all the way to nine."

Seeing Feng Bei and Mulanzhi's intense curiosity as they glanced at the notebook in his hand, Feng Yun couldn't help being moved, and added: "If you are interested, I can teach them to you. I don't know if you are willing or not. ..."

"Yes, yes, I am willing to learn."

Before Fengyun finished speaking,

Feng Bei nodded again and again: "Although these little things with twists and turns look awkward, if they can really represent numbers as you said, it will be much easier to write than the numbers you taught before."

"I'm willing to learn too."

Mulanzhi also expressed her wish.

"Since you are all willing to learn, then I will teach you."

Fengyun was very satisfied with Fengbei and Mulanzhi's performance, and decided to teach him. Now the situation of each rice field is in a relatively stable state, and he no longer needs to keep an eye on them all the time, so he can still spare some time.

But just to be on the safe side, he didn't take Fengbei and Mulanzhi aside to teach, but started teaching on the ridge of the field.

"Brother Yun, wait a moment. Wait until Sister Lanzhi and I take out the pen and paper."

Feng Bei hastily opened the satchel he was carrying, and rummaged through it.

She admires Fengyun very much, and she will imitate many things that Fengyun does. on the body.

"Sister Lanzhi, why don't you take out your notebook and charcoal pencil?"

Feng Bei took out the notebook and charcoal pencil from the bottom of the bag, raised his head, but found that Mulanzhi's hands were still empty.

"I... I'm not prepared."

Mulanzhi showed an embarrassed expression.

"I have an extra set here, I'll give it to you."

Fengyun held the notebook and charcoal pencils under his arm, opened the bag, took out a new set of notebooks and charcoal pencils, and handed them to Mulanzhi.

"Yun, I..."

Mulanzhi didn't immediately reach out to pick it up.

"Take it. I have a lot of empty pages in this notebook, and I won't be able to use it up anytime soon."

Hearing what Fengyun said, Mulanzhi took the notebook and charcoal pencil from Fengyun.

At this time, Feng Bei turned his face closer, looked at the notebook and charcoal pen in Mulanzhi's hand, and showed a flattering expression: "Sister Lanzhi, can we change it?"

"Bei, stop making trouble. You have it yourself, why do you want to change it with Miss Lanzhi?"

Fengyun couldn't stand it any longer.

"It's okay. Beimei can change it if she wants, it's the same anyway."

Mulanzhi handed the notebook and charcoal pencil to Feng Bei, but if you look carefully, you can find that her eyes are showing reluctance, obviously what she thinks in her heart is not what she said.

"Thank you, Miss Lanzhi."

Feng Bei immediately took the notebook and charcoal pencils from Mulanzhi's hand, the action was very fast, which made people think of grabbing, and then stuffed his notebook and charcoal pencils into Mulanzhi's hands, as if he was afraid that she would go back on his word. .

"Miss Lanzhi, you can't spoil Bei anymore, otherwise you will spoil her."

Seeing this scene in his eyes, Feng Yun couldn't help shaking his head.

It seems that Feng Bei got what he wanted, and he didn't feel any displeasure because of Feng Yun's rhetoric, but just tightly grasped the notebook and charcoal pencil, as if he was worried that he would snatch them away.

"Yun, you better teach these numbers quickly. We have learned, and we can afford some for you."

Mulanzhi glanced at the notebook and charcoal pencil in Feng Bei's hand, suppressed the reluctance in her heart, raised her head, and looked at Feng Yun.

"Okay. You look at it. It's a zero."

Fengyun turned the notebook to the last page, drew a circle on the blank space with a charcoal pencil, and then handed the notebook to Fengbei and Mulanzhi so that they could see clearly.

"This is zero. It's too simple. It's not like what you taught before, so many strokes."

Feng Bei took the lead in drawing a gourd in his notebook, and also drew a circle. After finishing the drawing, he read and talked with a hint of complacency on his face, as if he was very satisfied with his performance.

Feng Yun saw that Feng Bei also drew a circle in the notebook, so she and Feng Bei wrote it down a few more times in order to deepen the memory.

After Feng Bei drew a few circles, he showed an impatient expression and urged: "Brother Yun, hurry up and teach the next number. It's so simple, Mulanzhi and I have already learned it."

"Okay. It's one."

Fengyun began to teach the following numbers, and in the process, it once again showed why Arabic numerals became popular all over the world.

Although Fengbei and Mulanzhi were in contact for the first time, they still learned it in a relatively short period of time. It was not until Fengyun taught them to use them to combine larger numbers that the speed slowed down a little.