2. The school organized a spring outing, with 65,438 teachers and 326 students of Grade 04. The cart can seat 40 people, and the rent is 900 yuan. This car can seat 20 people, and the rent is 500 yuan. What is the cheapest way to rent a car?
3. Travel agencies offer two price schemes of "one-day tour in XX tourist area". Scheme 1: adult 150 yuan, child 60 yuan; Scheme 2: More than 5 people (including 5 people), each person 100 yuan.
(1) There are 6 adults and 4 children. Which scheme is cost-effective?
(2)4 adults and 6 children, which scheme is cost-effective?
4. The price of color TV is reduced by 355 yuan, and the sample is reduced by 145 yuan. At present, the sample price is 2355 yuan. What is the original price of this color TV?
The swimming pool is 50 meters long. Xiaoming swims seven times at a time. How many meters does he swim each time?
6. A tracksuit jacket 75 yuan and trousers 55 yuan. Miss Li bought 60 sets of this kind of sportswear. How much did it cost?
7. Each album has 32 pages, and 6 photos can be inserted into each page. There are about 900 photos in my home. Will five photo albums be enough?
8. The term begins on February 27th, and the summer vacation is in July 1. How many days are there in this semester?
9. My family buys a box of milk, a bag of soybean milk, a box of 3.6 yuan milk and a bag of soybean milk every day 1.4 yuan. How much is it a week?
10, 100 A4 sheets are stacked to the thickness of 1 cm. How thick is 1 A4 paper?
1 1, 1 kg can grind 0.85 kg of flour, 100 kg of wheat can grind how many kg of flour? 1 ton?
12. Adults need about 6g of salt every day. 1 How many g of salt do adults need every day? How many kilograms? How many kilograms of salt do you need a year?
13. Of the 100 products sampled, 85 have reached the first-class standard. How many of this batch of 10000 products meet the first-class standard?
14. Sound travels 332 meters per second in the air. How many kilometers can it travel per minute? 1
5. 100kg soybean can extract 14kg soybean oil, and how many tons of soybean oil can 1t soybean extract?
16, find the degree of each angle of the triangle. (1) The top angle of an isosceles triangle (2) with three equal sides is 96 degrees.
(3) The acute angle in a right triangle is 40 degrees.
17, Xiao Li has an isosceles triangle kite. One of its base angles is 75 degrees. What is its vertex angle?
18. The vertex angle of an isosceles triangle is 80 degrees. Find the bottom angle. 19. The two sides of a triangle are 3 cm and 4 cm respectively. How many centimeters may the other side be? 20. Xiaohong used to be 1 1.42 yuan. Yesterday, I bought a pen with 7.5 yuan. Today, my mother gave me 4.35 yuan. How much money does she have now? 2 1, a shopping mall held a promotion, and bought 5 pairs of all socks, and got 1 pair. A pair of socks is 7.68 yuan, and Aunt Zhang bought 12 pairs. How much did it cost?