2. The garden enclosed by the fence is14.8m long and 8.6m wide. How many square meters is the garden area?
3. The area of a triangle is 6.8 square decimeters, the height is 3.4 decimeters, and how many decimeters is the bottom?
Two engineering teams dug a canal 690 meters long, and each team started from one end at the same time. The first team digs14.8m every day, and the second team digs15.2m every day. How many days does it take to dig this canal?
The unit price of a pen is 10 yuan, which is more than the sum of eight ballpoint pens. How much is each ballpoint pen?
6. A workshop has to process 2 150 parts, which has been processed for 4 days, with an average of 2 15 parts per day, and the remaining 3.5 days to complete. How many parts are processed on average every day?
7. There are 352 fifth-grade students in a school, 8 less than the sixth-grade students. How many students are there in the sixth grade?
8. Mom goes to the street to sell fruit. I bought 2.5 Jin of apples, paid 10 yuan and took them back to 2.5 yuan. What is the unit price of apples?
9. Two cars, A and B, drove in opposite directions from two places 300 meters apart at the same time and met for 2 hours. It is known that the speed of car A is 1.5 times that of car B. How many kilometers does car B travel per hour?
10. A 40-meter-long highway will be built between the cities of Party A and Party B with a designed pavement width of 25 meters. 15m will be reserved as a green belt on both sides of the highway. How many hectares of land will be requisitioned for road construction?
1 1, trapezoidal experimental field, upper bottom15m, lower bottom 20m, height10m, * * * harvested wheat122.5kg.. How many Jin of wheat per square meter on average?
Workshop 12 originally planned to process 1200 sets of clothes in 20 days, but actually produced 960 sets of clothes in the first 12 days. According to this calculation, can you finish the task ahead of time?
/kloc-grades 0/3 and 5, those who participate in extracurricular groups account for the whole grade, those who participate in literary and art groups account for the whole grade, and the rest of the students participate in math groups. What is the proportion of participating in the math group in the whole grade?
14. Square nursery with a perimeter of 2400 meters. How many hectares does this nursery cover?
15, a flower farmer planted 0.4 hectares of Chinese rose, with row spacing of 0.4 meters and plant spacing of 0.2 meters. How many Chinese roses did he plant?
16, the cement plant originally planned 1035 tons, 18 days, and the world completed the task three days ahead of schedule. How many tons are produced more than planned every day on average?
17, transporting a pile of soil on the construction site. If 30 cars are transported every day, it will take 20 days to finish. It is now required to be completed five days in advance. How many cars are transported every day?
18, Xiao Yong read a 483-page story book and planned to finish it in 10 days. In fact, he read 42 pages every day for the first three days. How many pages will he read on average every day if he finishes according to the planned number of days?
19. after adopting new technology, a heating station saves 25.2 tons of coal in the first three days of each week and 7 tons of coal every day in the last four days. How many tons of coal are saved every day this week?