1, calculation: 0.5×12.5× 2.5×128 = ().

2. Calculation: 555 ÷ 32+82 1 ÷ 32 = ().

3. The school bought five pairs of table tennis rackets and eight pairs of badminton rackets, which cost 2 10 yuan, of which the unit price of badminton rackets is twice that of table tennis rackets, and the unit price of table tennis rackets is (); The unit price of badminton racket is ().

4. For 8 baskets of apples with the same weight, if each basket takes 25 kilograms, the weight of the remaining apples is equal to the original 3 baskets of apples, and the weight of each basket of apples is () kilograms.

5. Xiao Zhang has 34 2-cent and 5-cent coins with a total value of 1. 1 yuan, and there are () 2-cent coins; There are () nickels.

6. The number of people in Workshop A is 530 less than that in Workshop B. If 500 people are transferred from Workshop A to Workshop B, the number of people in Workshop B is exactly four times that of Workshop A. One workshop has the original () people; There are () people in workshop B. ..

7. My father was only 12 years old when my grandfather was my father's present age. Grandpa will be 84 years old by the time his father is now. Grandpa is now () years old; Father is () years old now.

8. Xiaoming and Xiaohong spent the same amount of money on exercise books together. As a result, Xiaoming got 8 copies and Xiaohong got 12 copies. In this way, Xiaohong gave Xiaoming 1. 1 yuan. The unit price of each exercise book is () yuan.

9. There are five consecutive odd numbers whose product is 45045. Find out that these five odd numbers are ().

10, there is a batch of wood, which can make 20 tables or 30 chairs. Now, if you want to make the same set of desks and chairs, you can make () sets.

1 1. Floor tiles of the same model are used for paving, and 168 bricks are paved with 28 square meters. If 14 square meter is paved again, a * * needs bricks ().

12, the sum of 3 times of one prime number and 2 times of another prime number is equal to 200, and the sum of these two prime numbers is ().

13. A parallelogram and a rectangle partially overlap and lie flat on the desktop. The base of parallelogram is 13cm, the height is 6cm, the non-overlapping part is a, the base of rectangle is 7cm, the height is 5, and the non-overlapping part is b ... first.

Is it () square centimeters larger than B?

14, there are a bunch of peaches, the first monkey takes half and adds half; The second monkey took the remaining half and added another half. The third monkey took the remaining half, added another half and left a peach. So there are () peaches.

15, with 48 pieces of sugar. If it is to be divided into 4 pieces, and one piece is 2 pieces more than the other, then the least piece has () pieces; The most one has () blocks.