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10 summer mathematics diaries for primary school students

10 examples of summer mathematics diary for primary school students

A diary refers to a carrier used to record content. A diary also refers to a notebook for recording things every day or a notebook for what you encounter and do every day. Record. The following are 10 sample essays on summer mathematics diary for primary school students that I compiled. Everyone is welcome to learn from and refer to!

Summer Mathematics Diary for Primary School Students 1

It’s a holiday! It’s a holiday! Children’s favorite summer vacation It’s finally here! In order to reward me for getting first place in the class in the final exam, my brother decided to take me to the amusement park for a day. Mom gave us 20 yuan and asked us to prepare lunch by ourselves.

My brother and I happily came to the "Captain Budd" bakery to buy bread. There is such an endless stream of people in the bakery! There are all kinds of bread on the shelves, including sandwich bread, red bean buns, pork floss buns, etc., which makes people drool. Everyone carries a small basket and carefully selects their favorite bread.

About 5 minutes later, I picked a croissant and a donut, and my brother picked a meat floss bun and a sandwich bread. Just when we were going to pay at the counter, an aunt with big eyes said with a smile: "Kids, our store is having a promotion today. As long as you spend 20 yuan or more, you can get a free piece of moose cake." With these words, my brother and I immediately cheered up and started planning.

I remembered the teacher in math class taught me to use multiplication to solve problems: "I know! Add the total amount of money my brother spent buying bread to the total amount of money I spent buying bread, which is 5×2 4×2 =18 (yuan), 20-18=2 (yuan). If you want to get the free moose cake, you must buy another 2 yuan of goods. "My brother touched my head and said slowly: "Xing'an. , there are two 5 4 in these four breads, so we can also calculate like this: (5 4) × 2 = 18 (yuan), we can buy two more bottles of mineral water with a unit price of 1 yuan to make up 20 yuan. "After listening to my brother's analysis, I jumped three feet high with joy.

I am so happy today! Not only did I have a fun day in the amusement park, but I also got free cakes. It seems that learning mathematics well can bring us a lot of benefits! Summer Mathematics Diary for Primary School Students 2

This summer vacation, our family went to Sanqing Mountain in Yushan County, Shangrao City.

A search on the Internet revealed that Sanqing Mountain is a famous Taoist mountain in the south of the Yangtze River. The rocks on the mountain are in various shapes, there are many kinds of pine trees, and wild flowers are everywhere. We checked into a hotel near Sanqingshan Mountain the night before, and arrived at the ticket office of Sanqingshan Mountain early the next morning.

The holidays are the peak tourist season, and there is a long queue at the ticket office. While waiting on the side, I saw a price list hanging on the upper right side of the ticket office:

Ticket price for ropeway: adult ticket is 200 yuan per person, student ticket (1.2m-1.5m) is 100 yuan per person, Children under 1.2 meters do not need to buy a ticket.

I excitedly said to my father: "Dad, I am less than 1.2 meters tall, so I don’t need to buy a ticket!" After hearing this, my father said happily: "Then you can count the number of people besides you. , are 2,000 yuan enough for the remaining 11 people to buy tickets?"

As soon as my father finished speaking, I quickly calculated: among the remaining 11 people, there are 7 adults and 4 children. So the fare is: 7×200 4×100=1400 400=1800 (yuan).

After hearing this, my sister waved her hand and said, "No, no, although my cousin is also a student, he is 1.6 meters tall. If he is over 1.5 meters, he has to buy an adult ticket!"

Yes, I actually missed important information in the price list. You must be between 1.2 meters and 1.5 meters tall to buy a student ticket. Now, 1,800 yuan is not enough. The fare should be: 8×200 3×100=1600 300=1900 (yuan).

After calculating the fare, I proudly reported to my father: "Except for me, the fare for the remaining 11 people is 1,900 yuan. If I prepare 2,000 yuan, I can still have 100 left!"

After everyone heard this, they all praised me and praised me for being a good calculation expert!

After buying the tickets, we took the cable car up the mountain. There are beautiful views everywhere on the mountain, much better than the pictures on the Internet! We had a lot of fun on this day. Primary school students' summer mathematics diary 3

At noon that day, my father came back from get off work, humming a small tune, and walked into the house happily. I immediately went up to him and asked: "Dad, what are you so happy about today?" Dad said: "This month, my salary has increased, and it has increased a lot!" I curiously asked: "What about you? How much salary do you get now?" Dad thought for a while and said, "Suppose your mother's monthly salary is _ yuan, and my salary is a little more than your mother's, and the sum of our two is 3,600 yuan. Can you tell me? How much salary can I get in a month?"

After listening to my father's words, I immediately took out a pen and paper and drew a line diagram on the paper to help me understand.

After my close observation and thinking, I came up with the answer and told my dad: "First of all, if mom's salary is considered to be the same as dad, then dad and mom's monthly salary is the same as *** It is (3600 100) = 3700 yuan, and then divide the sum of the monthly salary into 2 equal parts, and the calculated 1 part is the father’s monthly salary. The formula is: (3600 100) ÷ 2 = 1850 yuan.

After hearing this, my father nodded with satisfaction, and I was also very proud. At this time, my mother, who was cooking, suddenly said to me: "Is there no other way?"

"Also. Is there any other way?" I said in surprise. So with curiosity, I calmed down and thought again. Suddenly I found that the key to this question is to find out who should be used as the standard. Different standards lead to different methods. So, , I came up with the second method: using mother’s salary as the standard, assuming that father and mother’s wages are the same, then the sum of the monthly wages of the two people is (3600-100) = 3500 yuan, and then the monthly wages and the average Divide it into two parts, and the calculated part is the mother's monthly salary plus the father's 100 yuan more than the mother, which is the father's monthly salary. The formula is (3600-100) ÷ 2 100 = 1850 yuan.

After listening to my introduction of the second method, my father and mother laughed happily.

Mathematics is really interesting! Summer Mathematics Diary for Primary School Students 4

The most important thing during summer vacation every year. The happy thing is to go back to the countryside to break the corns. The corns are hanging on the corn stalks, and the golden corn kernels are exposed as if they have won the first prize.

Grab the corn stalk with your left hand, grab the corn cob with your right hand, press it down hard, and you will get a fat corn cob with a pop. My sister also followed my grandma's example and grabbed the corn stalk with one hand and the corn cob with the other. The cob was broken off obediently. I followed my sister to catch the heavy corn cob and put it into the basket.

I saw the corn in the basket gradually filling up, and my mother said with a smile: " Tianzi, will mom give you a math question to test you?"

I said confidently: "No problem, I am the little math star of our class!"

"Grandma broke off 26 corns, and my sister broke off half of the number of corns that grandma broke. How many corns did they break in one go?" Mom asked like a teacher.

Mathematics teacher Zeng taught. We must review the question carefully when encountering a problem. This question requires grandma and sister to break off how many corns. Two conditions must be found: the number of corns that grandma broke and the number of corns that sister broke, and then add them. stand up.

But the question did not directly tell us the number of corns that my sister broke. What should we do?

At this time, I remembered the problem that the teacher taught us to use division to solve the average score. What my sister broke was the corn that my grandma broke. Half of the amount, that is, divide 26 corns into two equal parts, one of which is the number that my sister broke. So the number of corns that my sister broke is 26÷2=13 (pieces). Then add up the corn they broke: 26 13 = 39 (pieces). After listening to my analysis, my mother and grandma nodded in praise.

After hearing this, the sister on the side said: "Tianzi, this question can also be calculated using a comprehensive formula, which is easier! 26 26÷2=39 (pieces)"

Mom touched He looked at the heads of our two sisters and said with a smile: "You are all little stars in mathematics!"

I am so happy today. Not only did I eat the fragrant and sweet corn from my grandma's house, but I also passed my mother's math test. It’s a test! It’s really rewarding! Primary school students’ summer mathematics diary 5

Today, after getting up in the morning and eating breakfast, I said to my mother: “Mom, the sun is out, let’s go riding a bicycle.” My mother said: "Yes! But I have a question, can you help me answer it?" I said, "What's the question!" My mother said, "Can you help me observe the shape of the bicycle?" I agreed, so We went to the garage and rolled the bikes out. I observed that the wheels were round, the bell of the bicycle was also round, and the seat cushion looked like a triangle but was not a triangle. I asked my mother with a grimace, what shape is this? My mother said she didn’t know either. After observing it for a while, oh! This is the shape of a water drop. Mom said again, "Xiangxiang, take a look and see what other parts of the bicycle you have learned." It turns out that the backrest of the bicycle's rear seat cushion is square. My mother praised me and said, "Not bad, there is progress!" Then we happily rode our bicycles to grandma's shop.

At noon, after lunch, my brother and I rode bicycles to play with friends. We were sweating profusely and thirsty. My mother gave me 20 yuan, and I went to the store and bought 2 A bottle of juice and a bottle of mineral water. I asked the cashier aunt how much these costs? The aunt replied: "Juice is 4 yuan, a bottle of mineral water is 1 yuan." I calculated 4 4 1 = 9 (yuan), I have 20 Yuan, 20 minus 9 equals 11. I gave the money to my aunt, and she found me 11 yuan. I was so happy that I followed my mother and brother home with juice and water. Summer Mathematics Diary for Primary School Students 6

Today, my mother and I went to the bookstore to read. Mom said, if you have a good book, buy it, and if you don’t have a good book, just read it.

Mom read 6 books, with an average of 12 yuan per book. I read 18 books, three times the number of books my mother read, but the average price per book was only 6 yuan, so the price of each book my mother read was twice as much as mine.

Mom *** saved 72 yuan, I *** saved 108 yuan, and the two of us *** saved 180 yuan. Ah, it really saves money! Summer Mathematics Diary for Primary School Students 7

October 1st is National Day. The People’s Republic of China was founded on October 1st, 1949. Today is 20__ October 1, 20__-1949=56, China is celebrating its 56th birthday.

On National Day, my parents took me, my brother Beibei, and my sister Chengcheng to Zhaoqing. There were 3 cars in a ***. There were 4 people in the first car, 3 people in the second car, and 5 people in the third car. 1 1 1 = 3. There were 3 cars in a ***. . 4 3 5 = 12, there are 12 people in a ***. We set off from Guangzhou at 9 o'clock in the morning. Due to traffic jam, it was already 13 o'clock in the afternoon when we arrived in Zhaoqing. 13-9=4. It took us 4 hours all the way.

Mathematics is really interesting and it is everywhere in life. Primary school students' summer math diary 8

Today, my family made three large plates of dumplings in one go. I counted 68 dumplings in one pot. At this time, my father asked me: "If six people eat, how much will each person get.

"I wrote a calculation: 3×68÷6=. I thought: First, calculate how many dumplings there are. I made a vertical expression of 3×68 and calculated that one dumpling is 204. I know the total number of hinges. , and knowing that it would be easy to divide it equally among 6 people, 204÷6=, the result of the vertical calculation is 34.

It turns out that life. Middle school is inseparable from mathematics. Primary school students’ summer mathematics diary 9

The weather is so nice today. My father and mother took me to the Hefei Science and Technology Museum to see the shell exhibition. There are so many shells here. I don't know. There are the most precious shells - the golden snail, the oldest nautilus, and the very beautiful Wanbao snail... There are so many that my eyes were dazzled after seeing the exhibition. There are about 120,000 kinds of shellfish in the world, with more than 100,000 kinds of shapes and sizes: the small ones are only 0.03 mm long, and the large ones are 1.8 meters long, and can weigh about 500 kilograms.

Do you think shellfish are amazing? Come and take a look! Take a photo with the shells like me! Summer Mathematics Diary for Primary School Students 10

One night during the summer vacation, my mother took me to I left Century Lianhua Supermarket and saw how many people there were! There were a lot of things inside, including stationery, food, clothing, tobacco, alcohol, toys, etc. My mother and I bought seaweed, milk, jelly, and drinks. , squid shreds, shower gel, socks, plums, fragrant olives and chocolate, etc. Their prices are: 23 yuan, 9 yuan, 3 yuan, 6.5 yuan, 28 yuan, 3 yuan, 40 yuan, 6 yuan, 10 yuan. Yuan, 1 yuan. In front of the checkout counter, my mother said: "Son, can you compare your calculation speed with auntie? Calculate the amount to be paid?" I knew that my mental arithmetic ability was not very good, so I quickly found a piece of paper. and a pen, I calculated it quickly and carefully, but it was still not as fast as the salesperson’s computer. When I told my mother the results

In the evening, I saw a problem in the Olympic book: In the orchard. The number of apple trees is three times that of pear trees. Master Wang fertilizes 50 apple trees and 20 pear trees every day. After a few days, all the pear trees are fertilized, but there are still 80 apple trees that have not been fertilized. I would like to ask: The orchard. How many apple trees and pear trees are there?

I was not intimidated by this question. The problem stimulated my interest. I thought, there are three times as many apple trees as pear trees. If we want to make two. After fertilizing the trees on the same day, Master Wang should fertilize "20×3" apple trees and 20 pear trees every day. However, he actually only fertilized 50 apple trees every day, which was a difference of 10 trees. In the end, ** *The difference is 80 trees. From this we can know that Master Wang has been fertilizing 20 pear trees a day, and 8 days is 160 pear trees. Based on the first condition, we can know that there are 480 apple trees. . This is to use the idea of ????hypothesis to solve problems, so I think the hypothesis method is really a good way to solve problems.