Xiaoyun is 8 years old, and her grandmother said,' When you grow to 12, I will be 62 years old.' How old is grandma this year?
4. What is the result of subtracting the minimum two digits from the minimum three digits and then subtracting the minimum one digit?
It takes five minutes for five children to eat five apples at once. At this rate, how many minutes will it take for 10 children to eat 10 apples at the same time?
6. Xiaohua has 10 red balloons, and Xiaohua has 8 yellow balloons. Xiaohua exchanged four red balloons for three yellow balloons for Xiaohua. How many balls does Kobanawa Xiaohua have now?
7. There are 9 students in the art interest group of Xinxing Primary School, and there are as many students in the calligraphy interest group as in the art interest group. How many students are there in these two interest groups?
8. It is getting late. Mom asked Xiao Ming to turn on the light in the room, but the naughty Xiao Ming pulled the switch nine times in a row. Can you tell me whether the light is on or off at this time? What about 20? 100?
9. Xiaoqing has nine story books, Xiao Xin has seven comic books, and Xiaoqing traded three story books for two comic books in Xiao Xin. How many books do Xiaoqing and Xiao Xin have now?
10. Xiao Min went to the store to buy stationery. She bought 1 pencil with half of the money she brought, the remaining half bought 1 ballpoint pen, and the remaining 1 yuan. How much money does Xiao Min have?
extreme
1.6 children divide one bag of apples into two bags. How many apples are there in this bag? 2. A 60-meter-long rope needs 12 meters to jump rope and 30 meters to repair the volleyball net. How many meters is this rope missing?
3. The mall sent back 28 TV sets, and sold some of them, leaving 15. How many sets have you sold?
4. Xiaohu learned to write brush strokes. I wrote six on the first day, and then I wrote three more every day than the day before. How much did he write in four days?
Xiaoyun is 8 years old, and her grandmother said,' When you grow to 12, I will be 62 years old.' How old is grandma this year?
6. What is the result of subtracting the minimum two digits from the minimum three digits and then subtracting the minimum one digit?
7. Mom has to walk 3 kilometers from home to the factory. Once, she walked 2 kilometers to work, then went home to get a very important tool, and then went to the factory. How many kilometers did mom walk to work this time?
8. A bus travels from East Station to West Station. If this bus leaves from East Station, after 1 1, will it be at East Station or West Station?
It takes five minutes for a cat to eat a mouse, and five cats eat five mice of the same size at the same time. How many minutes will it take to finish?
10. Xiaoming and Liang Xiao want to buy the same book. Xiao Ming is short of 1 yuan 7 jiao, and Liang Xiao is short of 1 yuan 3 jiao. If they use their money to buy the book together, the money is just right. What's the price of this book? How much money did they each bring?
Tisso
1. Huanhuan and Lele went to buy exercise books. Huanhuan bought four and Lele bought six. Huanhuan spends less than Lele 1 yuan. How much is the exercise book? Miss Li has 60 yuan money just to buy a football and two volleyballs. If you only buy two volleyballs, there will be 28 yuan left. How much is a football? How much is a volleyball?
3. A little black sheep is on the Little White Sheep Team. The little black sheep is the seventh in the front and the fourth in the back. How many lambs are there in this team?
4. 14 Students stand in a team to do exercises. Zhang Bing is the sixth in front and the sixth in the back.
5. 13 chickens lined up, including a big cock. From the front, it ranks eighth. How many chickens are there in the back?
6. 13 chickens lined up, including a big cock. There are eight chickens in front of it, and how many chickens are there behind it?
7. Xiaoming 10 years old, and his mother is 38 years old. How old was Xiao Ming 15' s mother?
8. Xiaoming and Xiaohong both collect stamps. After Xiaoming gave Xiaohong six stamps, they both had the same number of stamps. How many more stamps does Xiaoming have than Xiaohong's?
9. Longlong buys a pineapple with 4 yuan money, and can buy 1 kg banana with the money to buy a pineapple. 1 kg of bananas can buy 4 pears. How much is each pear?
10. Qiang Qiang and Xiao Hua played table tennis for two hours. How many hours did each of them play?
Article 4
1. There are 35 sugars. In the order of naughty-laughing-Tintin-Dongdong, everyone sends one at a time. Think about it. Who will get the last one? 2. Naughty began to have money in 300 yuan, so he went to 56 yuan to buy books and 128 yuan to buy stationery. How much money did naughty leave behind?
3.5 cats eat 5 mice and 20 cats eat 20 mice. How long does it take for 5 minutes?
4.30 Students sign up for the Art Group. Among them, 26 people from the art group and 7 people from the calligraphy group/kloc-0 participated. How many people are there in both groups?
5. There are two baskets of apples, the first basket is 25 and the second basket is 19. How many apples are taken from the first basket and put in the second basket? The number of apples in the two baskets is equal?
6. Xiaoli has 18 pictures. After giving Xiaolong three pictures, the number of them is the same. How many pictures does Xiaolong have?
7. Xiaohua is 6 years old this year. Father said to Xiaohua,' When you 10 are old, I will be 40.' How old is dad this year?
8. There is a giraffe in the zoo. Its age is the number obtained by subtracting the smallest two numbers from two numbers and then subtracting one number. How old is this giraffe?
9.6 The child is divided into one bag of apples and two bags. How many apples are there in this bag?
10. Xiaoming's family eats four apples in the morning, noon and evening. How many apples did Xiao Ming's family eat a day?
chapter five
1. has a two-digit number, and one digit is 5 more than ten digits. What are the possible numbers? There are 40 students taking part in the math contest. Xiaohong shook hands with the students who participated in the competition once each. How many times do they shake hands at a time?
3. 18 Students line up to do the questions. There are 10 people on the right. How many are there on his left?
There is a mirror opposite the clock. The clock in the mirror is shown below. What's the correct time on the clock? What time is it on the clock?
5. Huahua's house has three floors above and two floors below. How many floors does this building have?
There is a row of male students standing on the playground. There are six in a row. There are two female students standing between every two male students. How many female students are there in a row?
7. Xiaohua is 10 years old this year. She is 28 years younger than her father. How old was she last year?
8. The little monkey and the little rabbit went to pick peaches. The little monkey picked 15 peaches. When the little monkey gave the little rabbit three peaches, they all had the same number of peaches. Do you know how many peaches the rabbit picked?
9. Xiaoming traveled to Beijing with his parents in the summer vacation. They took a group photo with everyone in the tour group and took 15 photos. How many people are there in the tour group?
10. Xiaojun and his father traveled abroad together. Dad buys a train ticket for 5 yuan, and Xiaojun buys half a ticket. How much do they have to pay for the round trip?