"You mean, he's starting to make people play cards, and there's a lot of it?"

"Yes, father, brother-in-law said that he was going to do more, and those people in the province used some inferior cards to affect the mood of playing."

"Hmm......"

After listening to his son's conversation, Fang Xuanling's eyes flashed and he was silent.

To be honest, he really doesn't understand these things that Li Yuanjia did, and the only thing he knows is that this son-in-law wants more people to learn to use those Tianzhu numbers!

"Is this thing really that easy to use?"

Fang Xuanling, who was already sixty years old, was really not interested in those tadpole-like numbers, but at this moment, he still picked up the cards on the table and began to carefully look at the numbers on them.

"Father, what are you looking at?"

Waiting on the side was a little boring, Fang Jun couldn't help but ask curiously.

Ignoring his son's words, Liang Guogong looked at it carefully for a long time, and then suddenly asked: "Bereavement, can you use these numbers above?" ”

"Father, this is called Tianzhu Number!"

Rolling his eyes secretly, Fang Jun said helplessly: "Although the child is not very proficient, it is still no problem to use it simply, it is indeed much easier to use than the calculation, and it is very easy to calculate the numbers!" ”

Although Fang Jun didn't learn very much, he still learned some more or less.

It's okay to know ten Arabic numerals, figure out the simplest ones, and learn addition and subtraction. As for the slightly more difficult multiplication and division, because the previous mathematical foundation was quite solid, he could barely figure it out - this was something that Fang Fengzhu forced him to learn several times to understand, otherwise multiplication or something was good in ancient times, and there were multiplication tables in ancient times, but division is really no trick.

After all, he is young, and his brain is relatively good, Fang Jun can appreciate the usefulness of Arabic numerals. And to be able to show his ability in front of his father, he was also very excited at this time, and then said: "For example, let's settle accounts, I have tried, if you use this kind of Tianzhu number, the speed is twice as fast as the bookkeeper at home!" ”

"Twice as fast? Are you sure? ”

Fang Jun said happily, but Fang Xuanling was shocked after hearing it.

What is the concept of twice as fast?

In this case, doesn't it mean that it only takes half the time to complete the annual account inventory? Or is it enough for those small officials in the household department to leave only half of it?

But after being stunned for a moment, Fang Xuanling smiled dumbly.

"Hehe, how is that possible?!"

If this Tianzhu number really has such a great ability, wouldn't it have spread a long time ago, why wait until King Han thought of using cards as a means?

If he knew what Fang Xianggong was thinking at this time, Li Yuanjia would have to call out for the Arabic numerals.

These numbers have not been developed in Chinese history for many reasons, such as the fact that the perfection and improvement of Arabic numerals themselves requires a long process, and they are not as perfect as Li Yuanjia came up; Another example is the pride and stubbornness of the ancient Chinese scholar class, and some unspeakable thoughts; Of course, there is also a reason why Li Yuanjia thinks it is very important, that is, the calculations and formulas he began to learn since he was a child were not so simple in ancient times.

How many people are stumped by a chicken-rabbit cage problem?

It's just that Fang Xuanling doesn't know these things. Although he is a court chief assistant and has learned five cars, he is very average in arithmetic, so with the common sense accumulated in fifty or sixty years of life, he instinctively feels that his son is joking with himself......

No, this kid doesn't have the guts, he should be bragging, right?

Seeing that his father seemed to be in disbelief, Fang Jun suddenly became a little anxious, and hurriedly said: "Father, my sister's mathematics is much better than mine, if you don't believe it, let her tell you next time!" Also, my brother-in-law said that he is now asking people to make a special instrument for calculation, and the speed can be two or three times faster in the future......"

While speaking, Fang Jun also secretly regretted it.

He regretted why he was so lazy and never took a good look at the books his brother-in-law gave him. If now he's done reading it...... No, even if you only understand two or three books, wouldn't it be much more useful to pick up a pen and paper and count a few pages directly for your father?

It's a good opportunity to pretend to be forced in front of the old man, but it's gone.

"Two or three times faster? Ha ha. ”

It's a pity that after listening to his words, Fang Xuanling felt more and more that he was bragging, so he simply smiled and said: "Okay, if there is really such a fetish, then our Fang Mansion will simply use that number to keep accounts in the future." ”

"Huh? It's true? ”

Hearing this, Fang Jun's expression immediately became a little surprised. He knew why Li Yuanjia was so active in teaching his sister mathematics, and at the same time always encouraged Fang Jun to study hard, didn't he just want the Liang Guogong Mansion to use the Tianzhu number as soon as possible?

Could it be that Daddy can really agree?

"Hehe, it's true, of course."

Raising his eyebrows, Fang Xuanling no longer had any interest in talking nonsense with his son, and waved his hand casually: "Of course, the premise of everything is that the thing he makes can really be ...... so fast."

……

On the third day of Mihara County, that is, on the second day of the Lunar New Year, nothing special was arranged.

After a day's journey, and a day of busy work in Xianling, the second day of junior high school is actually for everyone to rest. And after another heavy snowfall in the evening, no one wants to run outside to suffer.

In this case, solitaire naturally becomes the best pastime.

It's simple and convenient, it doesn't take up space, you can just find a small table to play. And more importantly, it's really fun, a few people are gathered around or whispering, or shouting, everyone can find their own fun - in this era of serious lack of entertainment, you can only sleep when it gets dark, you can imagine how powerful the charm of the card game is!

You must know that in the future in the Internet era where there are almost countless entertainment methods, Happy Fight Landlord will always be at the top of the online game rankings, and the profitability is even stronger in mobile games!

Anyway, Li Yuanjia remembers that when he saw a data visualization list back then, he found that Happy Fight Landlord and Tiantian Love were eliminated, and they were always at the forefront of the krypton gold list of mobile games......

So on the day I stayed in Sanyuan County, I don't know how many people fell into the landlord fight...... Oh no, it should be said that it is in the pit of Dou Danyu!

And in the afternoon of this day, Fang Jun quietly came to Li Yuanjia, and said with a bitter face: "Brother-in-law, let them hurry up and make more cards, now there are more and more people looking for me, and I can't stand it......"