Math problems can be seen everywhere. I met several math problems in the process of buying food today.

In the morning, after breakfast, my family hurried to the vegetable market to buy food. I still want to eat braised pork today. What if you don't buy some meat? No, here comes the math problem.

First of all, before we came to the meat stall, my aunt greeted us warmly and asked, "What do you need?" I said, "Aunt, how much is the pork belly?" "8 yuan a catty." Aunt said, picked up a piece of pork belly and weighed it. She asked, "10 yuan, ok?" "ok." I replied. After buying it, I began to think: if the number of pounds is x, then the equation is 8x = 10. After solving, the result x = 1.25.

Then, we came to the tofu stand. I pointed to the tender tofu and asked, "Aunt, how much is the tender tofu?" "2 yuan 5 jiao." Aunt replied. "Then give me a piece of 2 yuan money!" When I finished, I handed 2 yuan the money. When my aunt handed me the tender tofu, I thought of the equation: if the number of pounds is x, then the equation is 2.5x = 2, and the two sides are divided by 2.5, 2.5x ÷ 2.5 = 2 ÷ 2.5, x = 0.8, and the number of pounds is 0.8! I am very excited because I have solved an equation.

Next, we bought green peppers, and my mother took half a bag and handed it to my uncle who sold vegetables. Uncle smiled and said, "3 yuan 1 kg, ***4. 1 yuan, I'll give you a little cheaper, and I'll give 4 yuan money!" I thought about it carefully: "Let the weight be X, 3x = 4, 3x ÷ 3 = 4 ÷ 3. Hey, how is it a circular decimal?" I'm confused. By the way, the teacher said that in general, two decimal places should be kept, X≈ 1.33, so that's it!

Finally, we bought other dishes. In the meantime, I solved one mystery after another. I can't help but sigh: the application scope of mathematics is so wide!

The kingdom of mathematics is really wonderful! In life, there are actually many mathematical problems waiting for us to discover and explore. ...

I must learn math well and make myself smarter!