Transmigrated into a female county magistrate during a famine, leading her country to prosperity

She didn't know whether adding and subtracting thousands was a bit complicated for beginners, so she didn't even mention that numbers could be multiplied and divided.

"Is it difficult?" Yu Zhengqing saw her frowning and asked uncertainly, "Tell me the general idea first, then give me the straw paper you just used, and I will figure it out myself."

This made Shen Zheng feel that he was about to "starve to death" before he could "teach his apprentice".

She took out another piece of clean straw paper and wrote "0" to "9" on it again, and also wrote a "+" sign and a "-" sign.

She explained to Yu Zhengqing the purpose of the two symbols.

Yu Zhengqing understood it immediately, "Two strokes crossing each other means addition, and one stroke means subtraction. It's easy to understand."

Shen Zheng nodded and began to write the formula. She originally wanted to start with the simplest single-digit addition and subtraction, but Yu Zhengqing seemed to be extremely confident in himself and said directly: "Just use their per-acre yield. I can learn it."

Shen Zheng secretly gave Yu Zhengqing a thumbs up, great!

Then comes the long teaching time.

"No, '5' plus '6' equals '11', so there's only '1' left!"

"Where's the '10'?"

"'10' is added to the upper digit, and it becomes '1'! The tens digit '7' is equivalent to '70', and the ones digit '10' is added, and it becomes '80', which is written as '8' in the tens digit!"

"Don't be impatient! Why are you yelling at me? Speak slower! I can learn it!"

"..."

Didn't she yell?

"Are you impatient?"

"I don't have any."

Then there was another long teaching session.

The voices of the two men became louder and louder, attracting the attention of everyone in the granary.

Shen Zheng helplessly held his forehead with his hand, while Yu Zhengqing's face turned red and he kept raising his sleeves to wipe the sweat off his face.

He got impatient at last, picked up the straw paper on the table, and flicked his sleeves, "You do the math first, it's too hot here, I'm going back to the backyard of the county government office to cool down."

In fact, I don’t want to embarrass myself in front of everyone again.

Shen Zheng chuckled, "You are already very good, sir. When you go back, you can start with the addition and subtraction of two-digit numbers and work your way up step by step."

"Who said I should go back? I'm tired and I'm going back to rest!" Yu Zhengqing was unwilling to admit it.

Shen Zheng nodded in sudden realization, "Then you should take a good rest, my lord. I will come to see you after I finish my work here."

Yu Zhengqing didn't even glance at her and left in a hurry.

Xu Zhubu walked over with curiosity. When Shen Zheng was teaching just now, he was watching everyone weighing themselves and eavesdropping at the same time.

The simple counting and calculation methods must have been brought over by adults from "over there", and he was really curious.

"Do you want to learn too?" Shen Zheng asked.

Xu Zhubu nodded without hesitation, "I hope you can teach me."

"Okay, okay. When you're done with your work, you, Principal Li, and all the teachers in the county school can come and study together."

Shen Zheng agreed immediately. She was hoping that more people would learn it and help her promote it, so she was naturally happy to teach.

Xu Zhubu got the answer he wanted and returned to the crowd to continue weighing.

Shen Zheng continued to calculate hard. Time passed quietly. She calculated one village after another. When she saw the record of Shanghe Village, she smiled and thought, not bad, not bad.

When she started to calculate the average yield per mu, she once again missed it: calculator...

Half an hour later, the sounds of wheel wheels and horse hooves were heard outside the granary. It was Zhao Xiu who had returned.

The people who were weighing rushed forward.

"Captain Zhao, which family's rice did you take? Is my family's rice included?"

"Captain Zhao, Captain Zhao, there should be one for my home! My home is close to the village entrance! You came back so quickly, you must not have stayed in the village!"

"Captain Zhao..."

"Stop, stop, stop." Zhao Xiu wiped his sweat and directly reported the chosen family.

"what......"

Everyone expressed regret when they heard this. There was no doubt that their family was not selected.

Missed the opportunity to go down in history...Alas!

"Sir." Zhao Xiu stepped forward to ask Shen Zheng for instructions.

Shen Zheng only needed to calculate the average per-acre yield of the two villages, and said without raising his head: "First weigh the rice that has been transported back, and then pour it out in batches. When I'm done with my work, we'll screen it again. Don't get it mixed up. We have to return it to the villagers after use."

Zhao Xiu received the instructions and started working quickly.

The door of the granary was wide open, and the hot sunlight poured in from the patio. The small hairs on the rice mixed with dust jumped in the sunlight.

A scene full of vitality.

Shen Zheng calculated the per-acre yield of the last village, rubbed his nose, and then raised the straw paper to blow dry the ink on it.

She was satisfied.

She was really satisfied with the per-acre yield of each village. The figures recorded on the straw paper had already exceeded her original expectations.

Shen Zheng had a premonition when the weigh-in took place, but now that it was written in black and white in front of her, she felt it was so real. She really did it, and Tongan County really did it.

Moreover, it is impossible for the village heads to report a higher per-acre yield just to save face - reporting more means paying more grain taxes.

She also believed that they would not lie to her.

Shen Zheng stood up and walked towards the people weighing the scales with straw paper in her hand. When everyone saw her coming, they stopped what they were doing and waited for her to speak.

Shen Zheng smiled and said, "You guys weigh them first. Two of you should come out and follow me and Captain Zhao to screen the seeds."

The rice seeds sent by the village heads today were more than Shen Zheng had imagined. Although they each brought a scale, it would take some time to weigh them all. She might as well make good use of her time and screen the rice that Zhao Xiu brought back first, so as to avoid being too busy when more people came from the county government office later.

Zhao Xiu handed the straw paper with the weight recorded to Shen Zheng. This weight was recorded by him when he collected grain from various villages. He weighed it again and checked it just now, and it was accurate.

Shen Zheng wrote down the above information one by one in the book.

Then Zhao Xiu took out a seed screening tool from the granary tool area - this is as important as a scale and is a necessary tool in every granary.

The grains of high-yield rice seeds are fuller than those of other rice seeds, but the previous tools can still be used. After all, seed screening does not rely solely on tools. Experienced farmers would say: the end of seed screening is grain selection.

Everything was ready, and the first round of seed screening began. Zhao Xiu and his colleagues spread the rice seeds flat on the sieve, and then lifted it high up with force. After several people repeated the action, the unqualified rice grains fell out from the sieve holes.

The first round of screening tools screened out 70% of the rice.

This ratio doesn't sound very good, but Zhao Xiu and the others all smiled.

"Sir! There is still more than 30% of the rice left!"

The rice grains that can be left for seeds are naturally the "dragons and phoenixes among rice grains". The rice grains that are not large in size mean that when they are on the rice ears, they cannot compete with other rice grains for nutrients.

The rice that is not competing for food must be eliminated first, so that you won’t be defeated by the weeds in the future.

This result was within Shen Zheng's expectations. She had learned before that if the seeds were screened according to the process, 90% of the ordinary rice would be screened out in the first step, and only half of the rice seeds would be left in the final grain selection.

Now that the first step of screening is completed, 30% of the high-yield rice can still be retained, which is already very good.