Li Hao did not study history and did not know much about abacus. He only vaguely remembered that when he was reading books in later generations, it seemed that there was something called the Wenwang peach wood abacus, which looked like a picture of the eight-row slate.

At that time, Li Hao thought, is this thing so unique in shape, so is it for people to use? If the digits are longer, would you still have to turn around and look?

The next day, I asked the housekeeper Lao Chen, and Li Hao realized what the Wenwang Taomu abacus did not exist at all. In the Tang Dynasty, one related to calculation is calculation sheets, and the other is calculation board.

As for the abacus..., what is that?

Facing the ignorant old Chen, Li Hao could no longer be interested except contempt. He arranged for him to call the carpenter and give some advice. He quickly completed a thirteen-level abacus, and he didn't even get enough paint. He just clamped his armpit and went out.

In the Ministry of War, Li Jing was holding a cup of tea and sucking it in one mouthful, his face was as deep as water.

Below, the Military and Caosi, the Office, the Ku Department, and the Three Divisions, stood in a row with a bitter and revengeful look on their faces, and threw several accounts at their feet in a mess.

Last night, Li Hao easily calculated all the data that needed to be counted. While saving Li Jing a lot of effort, he also found several errors. The biggest error was in the Ministry of War.

It is precisely because of this that Li Jing returned to the army after the morning court was dispersed and was furious. He called all the officers of the Third Division involved to the duty station to scold him, and ordered the Third Division to go back and check all the accounts again.

Of course, Li Jing's move may not be without his intention to vent his anger. After all, what happened last night was too embarrassing and he always had to find a place to vent his anger.

After a long time, Li Jing had almost finished drinking tea. The staff of the Ministry of the Ku Department took an opportunity and said, "Mr. Li, the Ministry of the Ku Department had checked the data several times as early as the beginning of the year, and there was no mistake in it. Look... Are there any misunderstandings in it?"

When the other two heard him say this, they immediately agreed: "Yes, Mr. Li, the company's data officials have already checked it, and there is indeed no mistake."

Li Jing's face was gloomy. Although several subordinates said "misunderstanding", as long as they were not fools, they could hear it. This was just a better statement to "you calculated wrongly."

In fact, if Li Hao had not personally pointed out where the mistake came from last night and the account calculations of which item were wrong, he would not have believed that the Ministry of War would have been wrong.

Taking a deep breath, Li Jing narrowed his eyes slightly and said coldly: "Okay, since you all say you have checked it correctly..., OK, the kuo Department, pick up your account book and recalculate one of the armor."

Even if the Ku Department Officer Wailang, who was scolded early in the morning, was so angry that he bent down and found the books belonging to the Ku Department from the messy account books on the ground. He called the Ku Department account room from outside, and did not leave Li Jing's room, and began to make a mistake on the spot.

Although Li Jing is his immediate boss and although he admires this invincible military god, even so, he cannot be in vain!

You, Li Jing, are proficient in military tactics and mathology, and are indeed higher than my official position, but so what? Can you calculate so many books in one night? Who can you miss it?

It was under such circumstances that Li Hao arrived at the Ministry of War, walked through the small square outside, and went directly into the old man's duty room. Seeing a bunch of people in the old man's room, he smiled and said, "Oh, Dad, are you... having a meeting?"

"What are you here to do?" Li Jing looked at his son with a gloomy face.

"It's nothing, I'll bring you a magical artifact." Li Hao smiled and nodded and greeted the Sanshi official Wailang standing below, and took out the abacus with burrs from his armpits: "No, that's it. If you have this magical object, you can throw it away directly."

"What is this?" Li Jing did not speak, but the official from the three departments below gave Li Hao a very good face and asked as if he was curious about the baby.

"This is called abacus, or it can be called abacus. Look, this abacus is divided into thirteen gears, each gear has six beads, five at the top. The one above represents five, and each bottom represents one, and each gear is ten."

Li Hao dragged the abacus with a burr in his left hand, and fiddled with his right hand, demonstrating the usage of the abacus, and muttered the words: "One goes to nine and one, two goes to eight and one..., six goes to one and five and one..."

Li Jing looked at a black line on it, and Sansi Yuanwailang was also confused.

What do you mean by this? Dharma mantra?

After fiddling with each other for a long time, Li Hao saw that everyone had no reaction, he looked up and found that everyone was confused. He slapped his head: "Oh, I'd better give you some real things to demonstrate." After saying that, he took the account book from the account that was busy recalculating the inventory armor, turned to him in another direction and began to fiddle on the abacus.

Soon, several people, including Li Jing, gradually understood, and one of them and two of them slowly lit up.

It is true that because of the problem of technique, Li Hao's speed of figuring out the abacus was not fast, but this was still much faster than the calculation speed of the accounting office of the Ku Department.

There is no need to make a calculation or a pen to record. It is a simple trick to express the numbers by simply touching a few beads up and down. It is not an exaggeration to say that such a simple tool is a magical object.

As for Li Hao, to be honest, he had already returned the fingering and other things to the primary school teacher. At this time, he was already very good except for barely recalling the formula. Fingering... what a joke.

But then again, the fingering method is not good, but we have strong control. Just one finger still makes the abacus sound.

As time passed little by little, everyone was still immersed in the convenience of abacus in calculating, Li Hao stopped and smiled and pressed the abacus onto the account book.

According to what he just explained, everyone could see that the beads on it showed: 281,365.

Twenty-eighty-one,365? How is this possible?

The Ku Department official Wailang almost glared out his eyes because just under the abacus, a line of words were written in black and white: Armor stock: 279,843 pieces.

Who is wrong? Is the account book wrong or the calculation wrong?

He just watched Li Hao calculate with his own eyes, and every addition and subtraction was clear, without any mistakes.

It's over, I promised that there will be no mistakes just now!

Yuanwailang's fierce gaze couldn't help but glance at his subordinate's tent, with a murderous intent.

The account room of the Kubu Department was also dumbfounded. The beads of sweat were blowing out as much as beans but they didn't dare to wipe them. They explained dryly: "Secretary, outsider, this, this account..."

"What's going on with this account? Haven't you promised that you're not wrong?" Yuanwailang's voice was outrageous, and he secretly decided that no matter what, after returning, all the accounts under his subordinates must be fired.

The accountant had a bitter face and whined, and after a while, he said, "I, we used to do a picture to save trouble, so I just added the summary data together and reported it."

"Bastard, you are all bastards... I want to remove your posts, I want to..."

Li Jing finally couldn't stand it anymore and slapped the table: "Is it enough, but isn't embarrassing enough? Get out, get back, check all the accounts of the Ministry of War over the years, and if there is any mistake, go to the west to guard the border for me."

Li Hao stood in the middle, looked at this, then the other one, and felt that he should say something at this time: "Dad, don't be angry, isn't it wrong, why bother to the frontier? It's not! If you really look down on them, why not send them to me for exercise. Even if you can't develop a good brain, you can develop a good body."

Sansi Yuanwailang was stunned when he heard this. TM is poisonous, right?

Li Jing asked them to guard the border and was just annoying. Even Li Er could not have directly sent his fifth-rank officials to three thousand miles just because he miscalculated a small amount of data.

But Li Hao’s suggestions are different. Sending them to exercise is not considered exile. Even Li Er doesn’t need to notify him. Li Jing can do it with just one order.

Thinking that he would be arranged to enter Ling Mansion, he shivered from Yuanwailang to the tent.

That is not a place for people to stay at all, right? Everyone was afraid of talking about the big soldiers of the Sixteen Guards. It is said that if the people who went there could be skinless even if they were not dead, they would be very good if they were weak scholars who went there, they would probably be able to leave bones all over their bodies.

Faced with such a threat, the few people did not wait for Li Jing to say anything, and immediately promised that they would never make any mistakes again. Then they ran away without a trace, much faster than the fertilized mule.

Li Jing was speechless. He was the top leader of the Duke of War. His words were not as good as his son, but his son, and he really didn't know if he should be happy or depressed.

However, when he saw the abacus with burrs, the depression disappeared and he coughed seriously: "Dejian, how many people have you seen this abacus?"

Li Hao blinked: "No one knows, I will bring it to you after I'm done."

Li Jing nodded: "Well, that's good. You will pretend that you have never made this thing in the future, do you know!"

Li Hao stopped doing it as soon as he heard this: "Why? This thing can be sold for a lot of money."

Li Jing rolled his eyes angrily, glared at Li Hao with regret and said, "You rebellious son, don't even listen to your father's words?"

"Listen, but this money..."

"Just how much is this broken thing worth? Such a simple thing, as soon as it appears, someone will imitate it immediately. Do you think you can sell it?"

Hey? What the old man said makes sense.

However, we are not fools, aren’t we? The old man is not clear about the secret of the abacus, obviously he is planning to use it as a secret weapon. As the top ten young people in the Tang Dynasty, how could we allow such a thing to happen under our noses?

With a hint of enlightenment, Li Hao stood there motionlessly, just stretched out his right thumb, index finger and middle finger and rubbed it hard together.

Li Jing was confused. After watching for a long time, he said annoyedly: "What are you going to do?"

Li Hao smiled and said, "Hehe..., Dad, hush money!"

Li Jing: “…”.
Chapter completed!