I trade in both worlds

Before he knew it, he had spent the whole morning in Journey to the West. Xu Xu looked at the sky and felt that it was getting late. He said to Xu Ziqing, "Sister Qing, it's getting late. I'll go back and cook and bring it over to eat together later."

Xu Ziqing looked at his phone. It was already past 11 o'clock. They had had breakfast at 7 o'clock this morning. It was indeed time to prepare lunch, but there was no need to ask them to go back to do it. The wood stove over there was not as convenient as here. He looked at the children, who were still attracted by the TV and probably would not want to leave for a while.

He raised his phone and said, "You don't have to go over there to do it. You can do it here, or order takeout."

Xu Xu said embarrassedly: "That won't do. I've already made you spend money this morning, how can I continue to make you spend money at noon? This won't do."

"Oh, it's okay. I want to eat alone." He opened his phone and prepared to order food. "It just so happens that I haven't eaten bullfrog for a long time. I can't finish one portion by myself. You guys can eat with me."

Xu Xu looked at the children, nodded shyly, and asked curiously, "What is a bullfrog?"

"Hmm..." Xu Xu simply exited the ordering app and searched for pictures of bullfrogs to show Xu Xu: "Hey, this is the bullfrog, also imported from foreign countries. Don't look at its ugliness, it's delicious."

Xu Xu looked at this toad-like thing and asked doubtfully, "Can this be eaten?"

"Yes, it's delicious. You'll know when you try it." Xu Zi said affirmatively, "One serving of basil bullfrog. Wow, there's also crayfish. I want to eat it too. How about ordering one serving as well?"

After saying that, he turned to look at Xu Xu, who said in confusion, "I haven't eaten this either."

"Huh?" Xu Ziqing thought about it and it seemed that eating these things had only become popular in recent years: "It seems so. Look at this. Do you have any in your fields? If so, you can catch them and sell them. Wild ones are very valuable."

Xu Xu looked at it carefully, shook his head and said, "I don't think I've seen it. We don't have it over there."

"Well, since you've never had it before, this is a good opportunity to try it out, so give me an extra portion."

Seeing that Xu Ziqing had ordered the meal, Xu Xu could finally ask the question that he had been holding back all morning: "Sister Qing, is there any difference between the silver and money here and here?" As he said that, he took out a string of copper coins and a silver bar from his sleeve.

Xu Ziqing looked at the copper coins and silver ingots in Xu Xu's hand, his eyes sparkled and his mouth was watering: "Wow, antiques. Your money must be valuable. We all use paper money now."

"Paper money?" Xu Xu looked at the silver in his hand and asked carefully, "Can I exchange some of your money? I also want to buy some things to bring back."

This question touched upon Xu Ziqing's blind spot in knowledge: "It should be possible. This is an antique for us. I think it can be exchanged for a lot of money. But I don't know much about this. I need to ask my brother. He was on night shift yesterday. I'll ask him for you when he gets up at night."

"Okay." Xu Xu nodded: "Sister Qing, I saw some people buying things outside without paying. I just saw you didn't pay when you ordered. Are you going to pay when the food is delivered?"

"Hmm..." Xu Ziqing didn't know how to explain electronic payment to the ancients. After thinking for a while, he said, "No, I have already paid. Wait a minute. I remember the New Year's red envelope is still in the drawer. I'll get it and show you what our current banknotes look like."

Xu Ziqing ran to the room upstairs and found a few red envelopes in the drawer of the desk. When she opened them, she found only 100-yuan and 50-yuan notes. It seemed that the only way to get notes of other denominations was to search for pictures on her phone and show them to her.

He handed the banknotes in his hand to Xu Xu: "Look, these are the banknotes we are using now. The red one is the largest denomination of 100 yuan, the green one is 50 yuan, and there are also 1 yuan, yuan, yuan, cents, cents, and coins, but the coins are only yuan, cents, and cents."

As he spoke, Xu Ziqing took out his mobile phone and searched for RMB, and pointed out the corresponding pictures to Xu Xu, telling her how to distinguish current banknotes. Then he remembered that the literacy rate of ancient people seemed to be very low, and he wanted to ask but didn't dare to, for fear of hurting her self-esteem.

After hesitating for a long time, he asked cautiously: "Xuxu, can you read?"

Xu Xu nodded and pointed at the "100" on the -yuan bill: "I don't recognize this, and your handwriting is a little different from mine."

Xu Xu pointed at the words "People's Bank of China" and said, "I recognize the Chinese characters 中, 人, 民 and 行, but I don't recognize the other two characters."

Xu Ziqing looked at the banknotes and said, "Then you should use traditional Chinese characters. It's okay. I'll buy you a dictionary later. These characters are "People's Bank of China."

Xu Xu nodded and asked, "How do you distinguish this amount?"

Xu Ziqing looked at the picture on his phone, pointed at the capitalized numbers and told her: "One dime is 0.1 yuan, which means 10 dime equals one yuan. Do you understand this?"

Xu Xu nodded: "I understand a little bit."

"Hmm..." After thinking for a while, Xu Ziqing held up the copper coin and said, "For example, this 1 cent is equivalent to our 1 yuan, and 10 cents is 10 yuan. Similarly, 10 of these 1 cents are 1 yuan."

After hearing this, Xu Xu understood. She pointed to the one-yuan note and said, "This one is bigger than the 10-cent note. It takes -cent notes to equal one of this one. This one is equivalent to one of our copper coins."

"Wow." Xu Ziqing gave a thumbs up, looked at Xu Xu in surprise and said, "Xu Xu, you are so smart."

Xu Xu blushed at the compliment and looked at her shyly: "Sister Qing, please stop complimenting me. Even Xiao Jin and Xiao Zhun can do this."

"Is it that amazing?" Xu Ziqing looked at Xu Xu in surprise: "Nowadays, many children can't even calculate that 10 cents equals one yuan."

"No way." Xu Xu was a little bit unbelievable.

Xu Ziqing nodded affirmatively: "It's true. I had a colleague whose son was in the second or third grade. He was doing a math problem. He could not figure out the answer to 10 cents and 1 cents to 10 yuan. My colleague was so angry that he had stomachache for several days."

"What is a point?"

"Points are..."

After explaining paper money thoroughly, Xu Ziqing started to popularize electronic payment: "We modern people keep our money in banks. Banks are similar to your money houses. Do you have money houses there?"

Xu Xu nodded: "Yes, but we have to pay a storage fee for depositing money."

"We are not a bank...￥%@&*"

After a brief scientific explanation, Xu Xu had a general understanding of modern payment methods, but still didn't understand what the Internet was. Xu Ziqing couldn't explain this. She didn't even understand the information she searched on Baidu. She should not mislead others.