At breakfast, Qianxue told Lingyun that the first batch of porcelain for packaging tea had arrived. "According to Yi Lang's request, we are looking for the largest porcelain workshop in Yangzhou, and the most famous celadon in their cellar is custom-made. In addition, we also sent people to Xingjiao, Hebei Province to order a batch of the most famous white porcelain. However, Xingjiao is in Hebei, and the ordered white porcelain will take some time to be delivered. ”

The celadon of Yuejiao in the south of the Yangtze River and the white porcelain of Xingjiao in the north are the most famous porcelain of this era. Since Lingyun positioned the dragon tongue as a high-grade tea from the beginning, the packaging naturally had to use porcelain, and it was also the most famous Yuejiao celadon and Xingjiao white porcelain.

"Well, although celadon is better, but there are many northerners who prefer white porcelain, and we use white porcelain, which is mainly used to package tequila sold to the north." Locality is always unavoidable. Ling Yun threw a piece of gnawed lamb bone under the table, and Gray Wind immediately wagged his tail and flew over, picking up the bone and gnawing on it.

Gao Mingyue snorted a little unaccustomedly, "Wolves are not well raised, and when they grow up in the future, they will either attack the master or leave on their own." "Gray Wind is not a puppy but a little wolf, a few days ago, Gao Yi took the guards up the mountain, borrowed hunting to practice riding and shooting, and brought Gray Wind when he came back. They shot the she-wolf during the hunt, and then found this little wolf cub in the wolf's den, and brought it back not to raise, but to throw it to the puppies of the Hound in the village to play with and train them. It just so happened that Ling Yun met him, and when he saw it for the first time, he liked this little wolf cub. The little wolf was so lonely and pitiful, it made him feel like he was panicking when he first arrived here. In the end, he asked the little wolf over, kept it by his side, and fed it with goat's milk porridge, and the little wolf cub survived tenaciously. He named it Gray Wind, it was only a month old, and it already had the appearance of three or four catties, and even followed Ling Yun's ass to gnaw bones every day when he ate.

"It is said that the dog was also a wolf at first, and then it was slowly tamed into a dog that cares for the house. Even if you want to leave when you grow up to be really wild and untamed in the future, then let it be. Ling Yun said with a smile, Gao Mingyue is also his sister-in-law. People say that the sister-in-law's ass is half that of her brother-in-law, but Gao Mingyue is not a kind lord except for being able to focus and be quiet when she is settling accounts. Until now, this sister-in-law still seems to have some prejudices against Ling Yun. This puzzled him, thinking that it was Gao Mingyue who first proposed that he join the Gao family. Ling Yun could only try to back down, who let this be his sister-in-law. He broke open a piece of cooking bread, sprinkled it with a little salt, and ate half of it himself, feeding the remaining half to the gray wind under the table who was staring at him with lovely eyes. "You can feed it, it's fun."

"Ladies don't raise wild things, let alone feed dogs at mealtimes." She scooped a spoonful of mutton soup with a spoon and said with disdain on her face as she blew the hot air.

Gao Qianxue was completely accustomed to the daily bickering between her husband and sister, and said with a smile: "Okay, Mingyue, you are His Royal Highness the dignified county lord, a real lady, a lady." Yi Lang is your brother-in-law, why do you keep fighting every day when you meet, like a child. The corners of her mouth raised, "Speaking of which, you are not as good as your brother-in-law." Yi Lang knows that you like arithmetic, but recently he has bothered to make a good arithmetic tool for you, saying that when you settle accounts in the future, you will be able to get twice the result with half the effort. By the way, Yi Lang, what is the name of the tool you made for Mingyue, you look at my memory, I forgot what I just said yesterday today. ”

"Abacus!" Ling Yun said with a smile. Although Gao Mingyue was always a little rude and unreasonable, Ling Yun couldn't be as knowledgeable as her. The best thing to do is not to keep arguing with her, but to find a way to change her attitude. He knew that Gao Mingyue's favorite thing was arithmetic, and he found that in this era, there was only calculation and no calculation. Counting the numbers, you have to put hundreds of small wooden sticks all over the place, which is too troublesome. The abacus is a thing, but he has used a good tool for thousands of years, he doesn't believe it, and when the abacus comes out, he can't even this little girl.

"Abacus? Arithmetic plates? Gao Mingyue smiled, as if she didn't believe that Ling Yun could make such a good thing at all.

Ling Yun calculated, picked up a fine linen cloth and wiped his hands, then turned to Mulan who was standing behind and waiting, "Mulan, bring me the abacus I made yesterday." ”

The abacus is a temporary system, which is not too gorgeous, but the abacus itself is not complicated, and the real power is just the formula of the abacus. Ling Yun put the abacus on the table, his fingers snapped and pulled, and the wooden beads crackled.

"This is the abacus? And also greatly improve the speed of calculations? Gao Mingyue didn't believe it.

"I know you are very good at arithmetic, and it is said that you are still the number one arithmetic master in Gaojiazhuang. Why don't we make a bet, you find an account book, and we will calculate together, you use your calculation chips, and I will use my arithmetic plate to see who can calculate first. Ling Yun said with a smile. Although the popularity of computers and calculators in later generations made the abacus gradually obsolete, he still had abacus courses in school when he was a child, and even later he never lost it. The level of abacus is not as good as that of those old accountants who are faster than calculators, but the formula is also familiar with the chest, and the abacus is not slow. Compared with arithmetic with a Sui Dynasty girl who is still holding more than 200 sticks in a big array, this is really a bit of a strong man bullying children.

Gao Mingyue was obviously conceited about her arithmetic, and she didn't believe that Ling Yun could win against her with a new tool. At the moment, he said without hesitation: "It's better than it, but what are you going to bet on?" ”

"Well, what to bet on." Ling Yun pinched his chin and smiled, and after a while, he said with a wicked smile: "Otherwise, if you lose, help me bathe Gray Wind for a month!" ”

"No way!" Gao Mingyue refused without hesitation and asked her to bathe the little bad wolf, how could this be possible. If it weren't for her sister's face, she would have had someone beat this wolf cub to death with a stick, and wanted her to bathe it with the lord of the county.

"Then what are you betting on?"

Gao Mingyue gritted her silver teeth and glared at her brother-in-law with a wicked smile, "Good gambling money, if you can win me, I will give you 10,000 yuan, if you lose, I don't want you to give me money, just throw this little wolf cub out of the village." She knew that Ling Yun, the uncle, had no money, but she deliberately made such a large bet, obviously wanting to get rid of the little wolf.

However, Ling Yun agreed without hesitation, and he won the bet.

I heard that the second lady and her aunt were going to gamble and settle accounts, and suddenly Gaojiazhuang became lively. One passed ten, ten passed hundred, and it didn't take long for the front hall to be full of people. Gaojiazhuang has always had a good atmosphere, and he usually treats people kindly, especially during this time, Ling Yun tells stories to his family every day, and his popularity is high. One is everyone's favorite second lady, and the other is the new aunt who is now popular, for a while, everyone was very excited, and they all wanted to know who won and who lost in this arithmetic duel.

Gao Qianxue was the chief referee, and the housekeeper Gao Bo and the bookkeeper Zhang Bo were the deputy referees. It was Zhang Bo who selected a new account book from the account room for the competition. Limit the time of a pillar of incense, and whoever can calculate the accurate result first will win.

"You're going to lose!" Before starting, Gao Mingyue had a win-winning expression on her face.

"Don't be too happy, 10,000 dollars, it's a lot." After Ling Yun came to the Sui Dynasty, he also had an understanding of the price of goods, in terms of the most basic rice price, it is now the prosperous era of the emperor, the eighteenth year of the founding of the Great Sui Dynasty, the unification of the world, the Northern Turkic and Southern Ping Chen Dynasty, it can be said that it is the time of the sun, especially in the past few years, the international shape is very good, there are no major wars, only some small border conflicts, and there is no big project, and there is no big natural disaster, so a few years of bumper harvest, the imperial court even built a large number of grain warehouses in various places. Even the Jingshi who needed to transport grain from Jianghuai, Hedong and other places into Guanzhong, the price of rice was only ten yuan for a bucket of rice.

What is the concept of ten dollars in doumi? After the establishment of the Sui Dynasty, all kinds of private money were cleaned up during the Northern and Southern Dynasties, and the official unified minting of five baht coins, and the thousand coins weighed four catties and two taels. This money is commonly known as good meat, the currency is strong, and the purchasing power is very strong. A modern liter of rice weighs 1.25 kilograms, and a bucket of ten liters weighs 12.5 kilograms, or 6.25 kilograms. However, the Sui era only has about 0.6 liters of modern one.

In other words, a bucket of rice in the Sui Dynasty weighed 3.75 kilograms, while a kilogram of sixteen taels in the Sui Dynasty was about 42 grams per tael, or 668.19 grams per kilogram, and a bucket in the Sui Dynasty was 5.6 kilograms. In this way, it is very clear that ten yuan in the Sui Dynasty can buy more than five catties and nine taels of rice, and the price per catty of rice is 1.78 yuan, less than two yuan a catty of rice.

If it is exchanged for huàn according to the price of rice in later generations, then a penny is almost worth about two yuan of soft sister coins in later generations. Of course, in fact, the purchasing power of copper coins in the Sui Dynasty is still higher than that of soft sister coins, after all, the grain of future generations is rich and the price of grain is very high, and no matter how cheap the grain price of the Sui Dynasty is, it is still not cheap. In modern times, an ordinary worker earns 3,000 a month and can buy 1,000 catties of rice, while in ancient times, the monthly salary of ordinary people could not reach 1,7800 wen.

10,000 dollars, this can be said to be a big gamble. Changed to rice, five or six thousand catties, can directly smash Ling Yun to death and bury him.

"Let's go!" With Gao Bo's start, Ling Yun immediately opened the ledger, and then quickly pulled out the abacus, in order to have a more shocking effect, he directly turned on the two-handed fast fighting ability. I think that at the beginning, Ling Yun relied on his kung fu of pulling the plate with both hands, and also participated in the abacus competition on behalf of the school and won awards, which attracted the admiration of countless female classmates. Now as soon as it is displayed, it has received immediate results. Everyone saw Ling Yun's eyes looking at the ledger, and then they didn't look at the strange plate full of beads, but their two hands were like phantoms on it, and a crackling sound kept ringing, full of rhythm.

Gao Mingyue was a little uneasy and difficult to calm down, so she couldn't help but turn her head to look at Ling Yun frequently. Seeing his miraculous appearance, he refused to believe it in his heart, and comforted himself that he must be pulling out blindly, and he was never really counting.