Math diary Fan Wen, a pupil of 12 grade.
During the National Day holiday, four of us came to the foggy city of fairy mountain. Fairy mountain adult tickets 60 yuan, children tickets 30 yuan. My mother asked me how much it was. I calculated that adults are 3× 60 = 180 (yuan), and children are 30 yuan * * * Yes 180+30 = 2 10 (yuan). Then we will take a small train up the hill. Adult 20 yuan, no charge for children under 1.2 meters. I am 4× 20 = 80 yuan. At the top of the mountain, we had a barbecue in 20 yuan, and each person had a bottle of drink (each bottle of 5 yuan), 4× 5 = 20 yuan. I spent 2 10+80+20+20 = 330 yuan in fairy mountain this time. Through this trip, I sighed: "Mathematics is really useful. Multiplication formula can help me solve so many problems. I will definitely study harder in the future. "
Math diary Fan Wen, a Grade 22 pupil.
This afternoon, my mother and I played blackjack with playing cards, that is, we showed four playing cards. Whoever works out the score first will win, and we have a good time. There are many algorithms, and some have only one algorithm. For example: "3,7,8,9", its algorithm is: 3×(9-8+7). Also: 6,7, 1, 9, and its algorithm is: (9-6)×(7+ 1). There are some things that we can't figure out at 24: 1 1, 9,13,7; 8, 9, 10, 1 1, we racked our brains and couldn't figure out a way. Maybe this is the secret of mathematics! This game is full of fun and mystery!
Math diary Fan Wen, a pupil in Grade Three and Grade Two.
When I came home from school this afternoon, I found that I had run out of new words after finishing my homework. My mother asked me to buy pens and books by myself. I crossed the road carefully, bypassed the traffic and arrived at the store. There are so many things! I found a place to put my notebook and pen, but I didn't want to buy a pen, only a watercolor pen. What should I do? No choice but to buy a watercolor pen handle. I looked at it. Watercolor pen 2 yuan 50 cents, this 1 yuan two. I went home as soon as I paid the bill. When I got home, my mother asked me how much it was, and I told her * * * 3.50 yuan. Clever students, have you worked out the price of watercolor pens and notebooks? The kingdom of mathematics is really interesting!
Math diary Fan Wen is a student in Class Two, Grade Four.
Since we studied division, I found that many things in life are related to division. For example, mom bought 10 bags of milk and drank 2 bags a day. How many days can she drink? 10÷2=5 (days). Grandma made 20 steamed buns. There are five people in our family. How much do we eat on average? 20÷5=4 (pieces). Grandpa has 9 birds, 1 birdcage with an average of 3 birds. How many birdcages does a * * * need? 9÷3=3 (pieces), it seems that learning division well can solve many problems in life.
Math diary of Fan Wen, a Grade Five and Grade Two student.
This evening, Jia Ruochen, Chen and Zhao and I went to Longhu Park to sell newspapers. It's time to start grouping. I am in a group with Jia Ruochen, and Chen and Zhao are in a group. Act now! Jia Ruochen and I walked along the road on the left, shouting, "TV news! TV next week! " In less than a minute, our group sold two copies, and they didn't even sell one.
Then we asked one by one. If it is male, we will call it uncle or brother, if it is female, we will call it aunt or sister. In this way, through hard work, our newspaper was sold out. But Chen and his team only sold four, so we helped them sell them together.
All the newspapers were finally sold out. Let's share the fruits of victory. We * * * wholesale 23 Handan radio and television newspapers. The wholesale price is 80 cents, and the retail price is 1 yuan. You can earn 20 cents by selling 1 newspaper, and we will sell all of them for 60 cents. Zhao sold two tickets to get 40 cents, and Chen sold five tickets to get 1 yuan. Jia Ruochen and I sold the most. a * * * sold 16. 3 yuan got 2 cents, and each of us, 0 yuan, got 65,438+6 cents. How happy I am!
My uncle took us to eat shaved ice to reward us. After eating shaved ice, we reluctantly said goodbye. However, we will go together next Thursday.
Math diary Fan Wen is a student in Class Two, Grade Six.
Today, my parents and I went to eat in Xiangcun, Carrefour. I ate 10 yuan, my father ate 8 yuan money, my mother ate 8 yuan money and we ate 26 yuan money. After dinner, I went shopping in Carrefour and bought 74.5 RMB cotton double nine-hole quilt, 1 Jianhua blended sesame oil in 0.8 yuan, 6.9 CD, Xiaoliang fresh cheese in 6 yuan, sewing needle in 5 yuan, awl in 2.5 yuan,1RMB sewing thread, and Yili low-fat and high-calcium milk in 45 yuan. I used 65438. After shopping, we went home happily.