Zu Chongzhi, a great mathematician in China, is the first person in the world to calculate the value of pi to 7 decimal places.
Xiaodong, Xiaoming and Xiaojun practice playing table tennis on the same table. They take turns to play for an hour, with an average of (40) minutes each.
4, the same notebook, the original price of each book A, B two shopping malls are the same, but "six? On Children's Day on June 1st, Shopping Mall A implements the sales of "buy ten get one free", and Shopping Mall B can enjoy the "10% discount". It is cheaper for consumers to buy in (b) shopping mall.
Two rectangles with equal perimeters must also have equal areas (x)
1, and the sum of the days in (b) in a year is 62 days.
A. March and April B. July and August C. August and September d. 165438+ October and 65438+ February
2. The diameter of the wheel is fixed, and the driving distance is directly proportional to the diameter of the wheel.
A. dimension B. area C. circumference D. number of revolutions
3. The factorization factor of natural number A is a=2×3×5, so A has (a) divisors. ..
A.3 B. 6 C. 7 D. 8
24/3=8 bottles 8/3 = 2 bottles ... 2 bottles (2+2)/3 = 1 bottle ... 1 borrow one bottle from the boss, and change three bottles to give him 24+8+2+ 1 = 36.
6/8 = 0.75 1-0.75 = 0.25 12 * 0.25 = 3.
That's all.