Chapter 572

Yes, Shi Xiaorui, in order to investigate their mathematics learning progress, directly gave them the test paper according to their own progress, but there was no time limit, when to work out and when to finish.

Lu Xilan handed in the paper at the earliest time, which was not the best she had learned, but she was the slowest, so the title on the paper was the simplest.

Shi Xiaorui took her paper and found that the addition and subtraction method within 50 was quite wrong.

Shi Xiaorui had a headache and marked these wrong questions: "these questions are wrong. The proportion of your mistakes is too high. You failed the exam this time

Lu Xi ran was very confident face suddenly wrinkled up: "impossible ah, I have a good count for several times, certainly not wrong!"

She took the paper and handed it to Lu Ming before she looked at it. "Brother, please help me to have a look. I'm sure I didn't make a mistake, right?"

Lu Ming also learned simple mathematical operations here in Shi Xiaorui. However, he was not very good at mathematics. He took Lu Xi Ran's paper for a long time and then said, "Ran Ran, you really made a mistake in these questions. Look at this one..."

After making Lu Xiran cry, Lu Ming became more patient with her attitude towards Lu Xiran. She knew that she was not enlightened and spoke slowly.

An Chang gathered his head beside him and looked at the test paper.

Lu Xilan's paper was written by Shi Xiaorui with Arabic numerals and addition, subtraction, multiplication and division signs. An Chang looked at it as if it was a heavenly script, all of which were symbols he didn't know.

"Is this really mathematics? There are no numbers at all An Chang said to Lu Ming.

At this time, the numbers were all in traditional Chinese, which was a bit difficult to write. At the same time, they basically avoided the places where they could be altered.

Lu Ming also learned it. When he found that an Chang didn't know him, he simply told him: "I think it's easy to calculate, it looks fresh, but it's easy to alter. You can't use it for accounting."

An Chang said, "I think so."

We are discussing it here, and Suwan has handed in his papers.

Suwan's progress is the fastest. Shi Xiaorui didn't give her a simple question this time, but gave her a classic chicken and rabbit cage question.

It's the kind of mixed addition, subtraction, multiplication and division problem that everyone has done and there are many variations.

It was the first time that Suwan saw this kind of topic. Shi Xiaorui saw that she also broke off her fingers under the cover of her sleeve like Lu Xilan. She couldn't help laughing.

However, after laughing, Shi Xiaorui pretended not to see how Jinmiao was doing.

The difficulty of Jin Miao's questions is between Su Wan and Lu Xilan, but there are no practical problems. Although the proportion of mixed operations is not large, there are several problems, and he is stuck in these problems.

An Chang originally planned to come to see Shi Xiaorui first, and then go to their room with Lu Ming to play. At this time, he was intrigued by the three people's topic.

Su Wan is a girl he doesn't know very well. He can't get close to her, but Jin Miao doesn't have so much trouble. He craned his neck and went to see the title on Jin Miao's paper. When he saw Jin Miao pondering over it, he was anxious. He took a piece of paper and began to do the calculation in the way he was used to.

However, without systematic learning, addition and subtraction still count. Multiplication and division have exceeded the normal range of ability, and can only be converted into addition and subtraction calculation a little bit. In this way, the final time to get the result is a little later than that of Jin Miao. However, the last two mixed operations of the two people are all right.

Here, Jin Miao and Su Wan finish the topic. Shi Xiaorui checks it and finds that the accuracy is not bad. So except for Lu Xilan, the other two are given a holiday by Shi Xiaorui. They can move freely for the rest of the day.

Lu Xilan didn't agree. She was dizzy when she finished the whole paper. Now everyone can go out and play. She is the only one left to study. How can this work!

However, she also knew Shi Xiaorui's temper, and knew that it was not good to confront her head-on, so she launched a circuitous tactic, holding Shi Xiaorui's sleeve in both hands, and cuddled up to Shi Xiaorui constantly.

"Niang, I'll have a rest first. I'll come back to learn soon. I won't delay any more. Let me play for a while."

This small voice full of sugar, Shi Xiaorui was not very firm position suddenly shaken more than half.

As soon as he saw the play, Lu Xi ran quickly winked at Lu Ming, indicating that he was also in love.

What else can Lu Ming do? We can only follow Lu Xilan's meaning and promise that he will be responsible for explaining to Lu Xilan the wrong questions in the paper just now.

Anyone who has tutored children's lessons knows how tormenting it is. Now Lu Ming is willing to take over, and Shi Xiaorui is overjoyed: "OK, Ran Ran Ran can play now, but I have to do all the wrong questions on the paper right with your brother today, OK?"

As soon as Lu Xiran heard that Shi Xiaorui was willing to let her play, he immediately forgot everything and promised: "OK, OK, no problem! Brother, let's go to the yard first! "

Fearing that Shi Xiaorui would repent, Lu Xiran quickly took Lu Ming and ran away.

Lu Ming is now more and more big by her hand to pull a stagger, in order not to fall down, had to follow her strength to go with her, an Chang also quickly follow.

When he got to the yard, Lu Xiran seemed to have really escaped. He took a breath and patted his little chest: "I'm scared to death. I thought I had to learn mathematics again today!"

Although Lu Ming didn't learn mathematics as fast as Su Wan, he was also good at it, so he didn't quite understand why Lu Xiran couldn't even calculate simple addition and subtraction well. However, in his opinion, Lu Xiran's problem is not so big. The main reason is that he didn't get around the bend, and he was always careless when he counted.

Lu Ming comforted her and said, "it's nothing. Just follow my mother's lessons for a while and get used to it."

This is what he learned before. Even if he didn't know how to memorize by rote, he had to write it down. When he learned more profound things later, when he looked back, he would find that the problems he had learned before were much easier to understand, and the places he didn't think about at that time were all opened up.

Lu Xi ran shook his head and said, "my brain is like porridge that I eat every morning. It's all mixed up. If I learn more, it will be as dry as lunch every day. Well, how can it be so difficult to be a general? "

Lu Ming said: "it's because you have learned a lot that you can be a general. Otherwise, anyone can be a general and you can't even read the military newspaper. How can you win a war?"