Genius remembers in a second [Aishang Novel Network biquge.info] to provide you with wonderful novels to read.

"Oh?"

Han Zude found the last page of the chess game according to his words, only to find that it was full of words. It's not like the other blank sheets of paper are all drawn on the chess game!

"1 is one, 2 is two, 3 is three, 4 is wanton, 5 is team"

"The left digit is ten times the right digit, and the right digit is every ten, such as 11 is one pick one, 12 is one pick two, and so on"

There were not many words written on that blank piece of paper, but Han Zude's eyes were getting brighter and brighter after reading this qiē carefully!

"What the hell is this?"

Han Zude was fascinated for a while, because with his eyes, it was naturally not difficult to see that these dozens of words contained a huge amount of information.

It turns out that in this era, although there has been some progress in counting methods. In reality, however, it is far from being as simple and convenient as later generations using Arabic numerals.

And when Qin Yong was preparing chess games for the two little girls Qin'er and Qi'er, in order to save some trouble, every move was marked with Arabic numerals. And at that time, because Qin Yong was personally guiding by his side, although the two little girls of Qin'er and Qi'er were seeing this Arabic numeral for the first time, they actually didn't have much impact on their reading!

But now Han Zude's situation is different, because Qin Yong is not willing to teach others what Arabic numerals are going to teach others this time, so he simply writes down the general meaning of the Ah Wei Bo number with a brush and hands it over to Han Zude to calculate! It's just that he wrote it down, but without his personal guidance, it would be impossible for Han Zude to fully understand the specific counting method of this Arabic numeral right away!

"This Qin Mingheng is simply a genius! How did he come up with such a simple and straightforward way of noting? ”

After some more thinking and comparison, Han Zude roughly understood what the counting method of Arabic numerals was all about! And as a result, he was completely stunned! Because he suddenly found that if the counting was carried out according to the method described by Qin Yong, the process would be a hundred times more convenient! At present, most of the account keepers in the major restaurants, Ji courtyards, commercial houses and other industries in the Great Zhou Dynasty are likely to be unemployed! Because no matter who you are, as long as you learn this method of counting called Arabic numerals, you can basically do it easily, and you don't need to ask for any more Mr. Ledger!

"If there is some calculation method based on this Arabic numerals, maybe it will be more convenient to promote this Arabic numerals"

As one of the leaders of the literary world in Jiangnan, Han Zude thinks a little too much!

No, he had just understood what the Arabic numerals meant, and he immediately thought about promoting it! However, he regretted that the so-called Arabic numerals were just a simple way to keep them counted! If you want to calculate between numbers, I'm afraid you still have to turn back to the original number and then do the calculation!

"In this way, it's complicated!" Han Zude said with a sigh in his heart.

It turns out that in this era, the so-called operation between numbers is extremely complicated for ordinary people!

Well, the addition and subtraction operations under a small amount are actually not too difficult, and the average small merchant and hawker have done a lot of business, so they naturally have a set of oral arithmetic talents in their hearts! But when it comes to larger numbers, or operations like multiplication and division, it's possible for only the real bookkeepers to do it! And it takes a long time! Because all their calculations are based on numbers such as one, two, three, four, wu, lu, and qi, the efficiency is naturally extremely low!

"Huh? No, in addition to this method of counting, the style of this book also seems to be a little peculiar? Well, the knot is square and dense, the strokes are horizontal and vertical, the pen is strong and round, and the momentum is solemn and majestic! What kind of book is this? Han Zude looked at the blank paper in front of him and fell into deep thought!

"Uncle, the song you taught Lin Dai'er today is so good?"

On the other side, after Qin Yong left the small Qinhuai River, he directly returned to the Qin Mansion with Qin'er and Qi'er. And on the way, Qin'er couldn't help but say.

"Oh? Does it sound good? I thought you wouldn't like it! ”

Qin Yong said. That's right, before he came back, he did have such a worry, but now that he heard Qin'er say this, he was relieved!

It turned out that what he wrote for Lin Daier in "Yixianglou" just now was a tune, and it was a completely modern melody. However, he really didn't know if such a completely modern melody would be accepted in this era! Although this piece is not the point in his plan, if this piece can be accepted by others, then there is no doubt that the final effect will definitely be better!

"How is that possible? By the way, uncle, can you also teach the maids to sing this song? ”

Qin'er asked with interest as she walked.

"Oh? Do you want to learn too? Okay, but this song is not for you to sing, and when I have a chance, I will teach you another one."

Qin Yongle said hehehe. It's been nearly a month since he came to this era, and he hasn't been able to find anything too meaningful to do, like this, going out for a visit to a green building, and then going back to tease the two invincible little girls, that is already the most fun thing, so he naturally won't refuse the request of the two little girls.

"Really? That's great! Thank you, Uncle! ”

When Qin'er and Qi'er heard Qin Yong say that, they immediately said happily.