A day's life is over before you know it. I believe everyone has a lot of experience. It's time to keep a diary seriously. So what problems should we pay attention to when writing a diary? The following is 10 math diary's composition compiled by me for reference only. Let's have a look.
Math diary Composition 1 My mother and I went to the supermarket and bought a box of 16 eggs and a bag of kiwifruit.
A few days later, we ate six eggs and three kiwis. Mom counted them and found that the number of eggs left in the refrigerator was exactly the same as that of kiwifruit. My mother smiled and asked me, "Can you tell me how many kiwis we bought at that time?"
I was blindfolded all of a sudden. How is that? My mother seemed to read my mind and encouraged me to say, "If you think about it carefully, first think about how many kiwis are left in the refrigerator, and you will definitely get the right result."
I calmed down and began to organize my thoughts. The number of eggs left is equal to that of kiwifruit. Know how many eggs are left in the refrigerator, and you will know how many kiwis are left. 16-6= 10. There are 10 eggs and 10 kiwis left in the refrigerator. We also ate three kiwis, so the quantity of kiwis we bought was 10+3= 13.
My mother smiled approvingly when I told the result. Interesting math problems are really everywhere in our lives!
Math diary Composition 2 found a math problem at home today. I found that a cup of cola is 800g, a cup of green tea is 500g, and a cup of iced black tea doesn't know how many grams, so I added another message-a model essay on baking iced black tea. Look at the math problems around you.
I calculated according to the teacher's method: 800-200=600, then 600+500= 1 100, and finally1100+800 =1900, so it's a *.
Math diary's composition 3 An interesting sericulture.
Spring is coming, one of my favorite things-sericulture. One day, I saw 1 grandpa selling silkworms of different sizes near the school. After school, I bought six silkworm babies at 30 cents each, and 0 yuan spent 3×6 = 18 points = 65438+8 points. The next day, I found that six silkworm babies ate about 12 pieces of mulberry leaves, and the silkworm babies grew up and ate more and more. 1 Silkworm ate 4 mulberry leaves on 1 day, so 4×6=24 mulberry leaves were put in every day.
After about 15 days, the silkworm baby spins silk and forms cocoons, like peanuts. 10 days later, when the young silkworm emerged from the "peanut", it became a white moth with 1 pair of antennae, 2 pairs of wings and 6 legs. Two days later, 1 pairs of moths laid more than 100, and 3 pairs of moths had 3× 100=300 eggs. I'm so happy!
I will have more than 300 silkworm babies when the spring blossoms next year. I will definitely give it to my teachers and classmates so that everyone can enjoy sericulture with me!
Pianer soybean milk+youtiao
Today is the weekend, and white clouds are floating in the sky. My grandma and I are going to buy breakfast. Go to the door of the store, "uncle, how much is a fried dough stick? How much is a bag of soybean milk? " My uncle said kindly, "A fried dough stick costs fifty cents, and a bag of soybean milk costs fifty cents." At this time, grandma gave me a math problem: how much does it cost to buy 5 fried dough sticks and 5 bags of soybean milk? I thought for a moment and answered, "5 yuan." Grandma asked me how I worked it out. I said, "Fifty cents for each bag of soybean milk, fifty cents for five bags of soybean milk" XX 25 "in 2 yuan, and fifty cents for five fried dough sticks in 2 yuan, which adds up to 5 yuan." Grandma said, "There is another way. Guess what? " I patted my head and still couldn't figure it out. Grandma reminded me: "Think of a bag of soybean milk and a fried dough stick as one, that is 1 yuan, aren't those five copies all 5 yuan?" My eyes lit up, this method is really simple!
Chapter 3 Mathematical Problems in Life
Today, my mother bought a lot of strawberries that I like to eat. My mouth is watering. My mother smiled and said, "If you want to eat strawberries, you must answer my question first." "What's the problem?" I asked. Mother said unhurriedly, "Xiaoming has eight more pencils than Xiaohong." How many pens does he want to give Xiaohong? "
I thought about it. Isn't that just dividing the extra eight pencils into two parts on average? Give one to Xiaohong, as much as it is. It can be solved by the division of 8÷2=4 (branch) taught by the teacher.
I told my mother what I thought, and she smiled. She praised me as a very clever child and gave me a big strawberry. I am eating strawberries happily. I think this strawberry is the sweetest because I bought it with wisdom.
Article 4 Life and Mathematics
Today, we have a special guest in our house-an aunt who collects junk. Then my mother took her to the utility room. After a period of bargaining, menstruation and my mother reached an agreement to sell a catty of waste paper for 40 cents. I saw that my aunt quickly tied up all the waste paper and then weighed it with a scale. A * * * weight 16 kg. At this time, my mother asked me to calculate how much a * * * sells. I said, "Mom, I haven't learned 16 times 4!" My mother said to me, "Use what you just learned to calculate." I had a brainwave, thought about it, and said to my mother, "I figured it out." Six yuan and forty cents. " Mom asked how to calculate it. I said, "16 kg is 8 kg, 1 kg is 40 points, 1 kg is 80 points, 8 times 8 is 64, and 64 points is 40 points for 6 yuan." My mother nodded with satisfaction, and my aunt praised me for being so smart.
I feel that mathematics is everywhere in life!
Math diary's composition 4 "Qiu Zi, go shopping with your mother for new year's goods!" i really do not want to go. I have to prepare for the postgraduate entrance examination, and there are still many books to read. But I don't trust my mother to go alone. Mom has obviously aged a lot since dad left home. Mother is walking on the mountain road with a basket on her back. The air in the twelfth lunar month is full of fragrance, which is the smell of bacon, sausage and dried bean curd. It takes more than an hour to walk from the old Laoshan where we live to Xiangchang.
At rush hour, people gather from all directions to buy goods. Several years ago, the countryside was crowded and noisy. New year's goods eat the most, followed by clothes. What farmers produce is generally only enough for their own consumption and rarely sold. In addition, the transportation is convenient now, most of the rural dishes are shipped from other places, and there are many out-of-season vegetables.
Walking through the crowd, I asked, "Mom, what new year's goods shall we buy?" Jiaozi uses brown sugar; Vermicelli for stewing pig's trotters; There are also mushrooms and kelp, which are inseparable every year. I also need to buy some chicken essence, pepper, sesame oil, onion, ginger, garlic, pepper and pepper. You don't have to buy it if you have it at home. There is no shortage of side dishes, and tofu has been ground. "Mom has always been frugal. My tuition fees for studying mainly depend on student loans, and my mother earned the living expenses. If it weren't for her four pigs, two sheep, a cow and three acres of dahongpao oranges, I couldn't afford to read at all. I want to find a job early, but my mother insists that I go to graduate school.
Thinking of this, I hate my father again. He used to be a bricklayer, earning several hundred dollars a day, and his family life was relatively easy. But when he went to work in other places, he had an affair and wanted to divorce his mother. Mother refused, so he left and never heard from again. "It's almost noon, you have to go home quickly to buy anything, and you have to spend money to have lunch in the street." My mother kept looking from one house to another while nagging, and finally stopped at a booth. That booth sells calendars, fortune-telling books and the like, and the quality is average. Mother picked up a calendar and asked, "How much is it?" "One Piece." Mom gave the money and left.
On the way home, I asked my mother why she bought a calendar. I can tell the date by watching TV. Mom smiled and said, "You must have a lunar calendar at home, so you will know what wheat to plant now, what awn to plant, and what jobs Grain Rain and the vernal equinox have. Your father used to remember this, but now that he is gone, I must remember that as you sow, you reap. "
Math diary Composition 5 I am filled with joy, because I will have enough fun with my three sisters in Jinhua! Just then, the bus came! I quickly ran into the car and grabbed a seat to sit down! "Selling tickets! The tickets are sold. " A crisp cry rushed into my ears, and an amiable aunt came up to me step by step. I took out my money and said, "Four people paid together to go to Zhejiang Middle School to buy books!" "I don't know is aunt is wrong! Or what? I only took the money from 8 yuan! And after receiving the money, he turned and left! So, I shouted: "Aunt, you took two yuan less! "Aunt immediately turned around! I saw him coming up to me with a shy face and saying, "Little girl, I haven't miscalculated the money several times all the year round. It's rare. I won't tell you if I do it several times!" "You are the first to tell me!" After that, she took two more dollars from me and boasted, "Little girl, you! Really honest! " After what she said, my heart was filled with joy!
It seems that the decimal multiplication I learned is still very useful in our life! Of course, we should be honest!
Math diary Composition 6 Today, my mother went down to weigh herself. Her weight is 49.3 kilograms. Her height is neither short nor too high, 162 cm. Mom said, this is a math problem. You can write it on the math problem. I listened to my mother and posted her height and weight. Then, I saw another number, 18.8. I asked my mother what the middle row meant. Mom said it was an index calculated by height and weight, indicating that mom was in normal shape. I finally understand that these three are my mother's indicators.
Many problems in our life can be explained by mathematics. For example, my height is 120 cm, and my brother is 80 cm, so I am 40 cm taller than him. For example, age, grandpa is 62 years old, brother is 2 years old, and grandpa is 60 years older than brother. For example, the temperature is so low during the Chinese New Year. One day, the lowest was only 5 degrees Celsius, and the highest was only 10 degrees Celsius, shivering with cold. For example, today is Saturday, February 20th, 20xx, and it's 8 o'clock in the evening. For example, in counting rankings, my mother took 10430 steps a day, ranking sixth among friends. There is still a turnover. My brother's bathtub is full of water. After putting my brother in, the water came out. How much water does it take to fill it up after taking my brother out, that is to say, it is the place occupied by my brother after going in. There is also a younger brother who drinks milk from a bottle. How many milliliters are written on the bottle, and which number is reached after the milk is filled, it means how many milliliters of milk there are. My brother drinks 180ml every time. Hee hee. There is so much math in my life that I should study hard.
Math diary Composition 7 After studying in the first four units, my grades have not improved. The best score is 82, and the worst score is 23. This score came at my most vulnerable time. I am very, very sad. I am sad. Obviously I have worked hard, why can't I improve my grades? I found the mid-term "why" because I didn't insist on doing more, practicing more, watching more and learning more. This is the reason why my grades have not improved. My mother said that I should keep previewing and reviewing every night to improve my grades, but I didn't insist. This achievement is also a great blow to me, and because of this, I am so angry that I insist on doing exercises every night.
The second reason is that I sometimes get distracted in class and don't listen to the teacher carefully, which leads to the teacher's main content not being listened to and I don't want to do more exercises. I was lazy, but the teacher asked me what to do, so most of me didn't do my homework. I copied my classmates directly without asking my parents and teachers. I didn't realize until now that what others say is others' after all. Copy for a while, but not for a lifetime.
The third reason is that I didn't study early in the morning on time, which led to many knowledge points not being firmly grasped. There are many formulas and calculation methods in the gold medal study plan, but I haven't mastered them. Please pay attention to this. The fourth reason is that I don't have enough perseverance. I was hot for three minutes. I said I would study hard and make progress every day. I said I should do exercises tomorrow. I said I should study early every day. But? I didn't do it, which means my perseverance is not enough. I need to persist! The skill of mathematics is to do more, practice more and listen more. If I don't listen carefully and do my homework in class, then I can't play math well and I can't learn math well. I do problems every day, just like a diligent stupid bird, and I insist on doing one page of oral arithmetic problems every day. I believe I can do it as long as I practice more questions, listen more and learn more! For myself, I also want to study hard and learn math well. Study hard and make progress every day! !
Math diary Composition 8 Today, I played darts with my sister. I found many math problems from this game!
A dart board has five circles, the innermost circle is a red heart, and shooting can get 10 points, the second circle 8 points, the third circle 5 points, the fourth circle 3 points, and the outermost circle 1 minute. My sister and I had a life-and-death contest.
Sister, she scored 3 points on the fourth lap for the first time. The second shot dropped, and she didn't score! Just as I was smiling from ear to ear, my sister suddenly made progress. Hit the key and get 10 points. I am not happy now. Sister, she got 13!
It's my turn I aimed for a long time. On the third lap for the first time, I scored 5 points. The second shot was not very good, only 3 points. If I want to surpass my sister, I have to shoot the innermost heart for the second or third time. As a result, I shot the second lap for the last time and won. I'm so happy!
Math diary Composition 9 Mom and Dad went to work today, and grandparents went out to eat. I have been to "home alone" once. So I went to the vegetable market alone to buy food.
When I came to the largest vegetable market in Xiongzhenlou, I couldn't help sneezing as soon as I entered the door. I walked in and saw a vegetable stall selling celery. He bought 1.5 yuan a catty of celery here. Seeing that I was a child, the stall owner said, "Little friend, are you going shopping alone?" I said, "Sure, can this celery be cheaper?" The stall owner smiled and said to me, "Look at you as a child, I will give you a 20% discount." In my mind, I bought 1.2 yuan a catty after the celery here was discounted.
I walked around again and saw a booth selling celery. Curiously, I went to the stall owner and asked, "Uncle, how much do you sell celery here?" The stall owner tidied up the food and came up to me and said, "Little friend, the celery I have here is very cheap. 1.8 yuan. How about I give you 50% discount? " As soon as I figured in my mind that the celery was a catty of 0.9 yuan after being folded in half, I bought it immediately.
I bought a lot of vegetables today: celery, bamboo shoots, mushrooms, tofu and pork. I am very happy and hope to have the opportunity to buy food by myself.
Math diary Composition 10 Mathematics is not only an indispensable tool for all disciplines, but also can fly freely without considering the constraints of intuitive feelings. The following is the primary school math diary collected by Moore Manor for your reference.
Moore Manor is a game that our primary school students like very much, which allows us to relax ourselves while reading intensively. At the same time, I also found that Moore Manor also contains a lot of mathematical knowledge, and playing games can also improve our mathematical level.
There is no furniture in my house in the game. In the game magazine, I found a set of beautiful small furniture, worth 3300 mol beans. However, I only have 3000 moles of beans. What should I do to buy this furniture?
So I used my brain and found that moll bean deposit bank has interest, and the interest rate is 3% per day. In other words, my 3000 moll beans are kept in the bank, and the daily interest is 3000*3%=90 moll beans.
A day later, my deposit became: 3000+90=3090 mol beans;
Two days later, my deposit became: 3000+90×2=3 180 mol beans;
Three days later, my deposit became: 3000+90×3=3270 mol beans;
Four days later, my deposit became: 3000+90×4=3360 mol beans.
That is, after the fourth day, my savings can pay for furniture!
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