Excellent composition of mathematics in life 1 Mathematics comes from life, and learning mathematics must go to life. The content of mathematics learning is realistic and challenging, so we should form the habit of learning from an early age.
I remember one night in the summer vacation, my mother and I went to the cinema in Liyang to see a movie. I want to eat popcorn and drinks. My mother gave me ten yuan to buy it myself. Usually my mother buys it, but now I don't know how to buy it. I went to the store and ordered a drink and a small bucket of popcorn, and paid 10. The assistant aunt said that there was not enough money, only enough for one cup, a small bucket of popcorn 18 yuan. I wonder why it is so expensive. What should we do?
I asked my mother for money again. My mother gave me a 50 yuan bill this time. I gave the money to the assistant's aunt. I calculated it myself, 10+ 18 = 28 (yuan), 50-28 = 22 (yuan), and checked it again, 50- 10-650. Sure enough, the assistant aunt gave me the food and gave me 22 yuan.
I gave the rest of the money to my mother and ate popcorn with relish. My mother asked my aunt if the change was correct. I said yes, I have calculated it over and over again. I told my mother the algorithm. Mom said, yes, you are great!
I don't think it is difficult to learn math well. In fact, math problems all come from our own lives, and there is math everywhere in our lives. I will definitely learn to do what I can in the future, form the habit of learning, learn to learn and learn to live from an early age.
Mathematics in life is not only written, but also closely related to our life, which is reflected in every little thing in life.
Today, my father and I went shopping in the supermarket. I stopped at the candy rack. "Oh, dad, you see, there are two kinds of packaging for this kind of sugar. The quality is different and the price is different. Tell me, what kind of packaging should I buy? " Dad looked at it and said, "Can you prove it by calculation? Look! 70 grams per bag in large package, the price is 2.5 yuan; Small package of 23 grams per bag, 0.9 yuan. I calculated that large packaging is more affordable than small packaging. " I'm proud to say. "Can you talk about the method of choosing large packaging and small packaging based on previous experience?" Dad asked. I said confidently, "Under normal circumstances, when we buy things, we usually try to choose large packaging." Dad nodded his head.
We came to the shelf selling melon seeds again. Dad deliberately slowed down, picked up a kind of melon seeds and said, "What kind of packaging is affordable for you?" I didn't even look at it, so I said without hesitation, "big bag!" " Dad said, "Oh, really? Take a closer look: "The big package is 230g, and the price is 5.5 yuan; Small package 150g, the price is 2.5 yuan, obviously small package is affordable! "I seem a little confused. Dad knows my mind." In fact, when shopping, we have to compare to determine which package is cheaper. "I suddenly realized, and said," It turns out that things in big packages are not cheap! " "
Mathematics is really everywhere!
Mathematics in Life Excellent Composition 3 In our life, mathematics is everywhere, mathematics in life. Don't believe it? What happened today proves this point.
In the afternoon, my mother gave me twenty yuan to buy a bottle of soy sauce and a bottle of honey in the supermarket. After arriving at the supermarket, I first chose a bottle of "Douheng" brand soy sauce, 4.40 yuan. Then, I go to buy honey. There are only two kinds of money. The first one is 8.60 yuan, and the other is only 8.40 yuan. I thought, "the hexagon of the first type and the four corners of soy sauce can make up one yuan, which is easier to calculate." Moreover, the first one is two cents more expensive than the second one, indicating that the quality is also good. "
So, I picked up the first kind of honey and soy sauce, paid the money at the cashier's desk, and went home happily with the recovered 7 yuan money.
In the evening, my friend invited me to go skating, and I readily agreed. I thought, "I'm going to bring chocolate today, and everyone will share it." How much should I bring? I thought about it and brought twelve. If there are two, 12÷2=6, which can be divided equally; If there are three people, 12÷3=4, we can get an average score ... According to this calculation, 1, 2, 3, 4, 6 and 12 children can get an average score. So, I took twelve chocolates to go skating. Sure enough, three people came. I gave each of them four chocolates and just finished eating them.
There is a lot of math knowledge in life, which a careless child can't learn!