1. When determining the position of an object, we must know its () and distance.

2.()÷ 20 = = 20: () = ()% = () (decimal)

3. According to 4X=5Y(X and y are not equal to 0), we can get X: Y = (): ().

4. The diameter of the cylinder bottom is 1m, the height is 3.5m, and its side area is () m2. The bottom area is () square meters.

5. The scale of a map is 0 40 80 1 20km, from which we can know the distance on the map ().

Represents (). Change it to a numeric range ().

6. 18 has () factors. Choose four numbers from them and write the proportional formula ().

7. The diameter of the bottom of the cone is 2 cm, the height is 3 cm, and the volume of the cylinder with the same height as the bottom is () cubic cm.

8. The school held a sports meeting with 90- 100 athletes, and the number of male athletes was female. There are () male athletes and () female athletes.

9. Cut a cube with a side length of 8 decimeters into a new cone with a volume of () cubic decimeter.

10. If the number of boys in a class is girls, the number of girls is boys, the number of boys is the whole class, and the number of boys is less than that of girls ().

1 1. The height of cylinder and cone is equal, the volume of cone is smaller than cylinder 18 cubic decimeter, the volume of cone is () cubic decimeter, and the volume of cylinder is () cubic decimeter.

12. The advantage of the pie chart is that it can clearly show the relationship between () and ().

Second, the judgment question. (5 points)

1. The scale of the school plan is meters. ( )

2. If the number of A and B are equal (A ≠ B), then A: B = 20: 7, ().

3. Transform a cylinder into an approximate cuboid with equal volume and surface area. ( )

4. It is more appropriate to use statistical chart to show the temperature changes of patients all day and night, and choose broken-line statistical chart. ( )

5. In the proportion, the product of two external terms is subtracted from the product of two internal terms, and the difference is 0. ( )

Iii. Selection (10 score)

1. Two ratios in the following group () cannot form a ratio.

A, 7: 8 and 14: 16b, 0.6: 0.2 and 3: 1C,1:10 and 10: 9.

2. A story book, I have read it, and the pages I haven't read are the pages I have read () ().

A. B, C,

3. The area of cylinder and cone is equal, the volume ratio is 1: 1, and the height ratio of cylinder and cone is ().

a、 1: 1 B、3: 1 C、 1:3

4. The scale of a drawing is 10: 1, and the length of the part on the design is 5cm, so the actual length of the part is () cm.

a、50 B、5 C、0.5

5. The side length ratio of small square to large square is 2: 3, and the area ratio of small square to large square is ().

2:3 B、6:9 C、4:9

Fourth, the calculation problem. (18)

1. Calculate the surface area and volume of cylinder and the volume of cone (unit: cm)(3+3+3 minutes).

2. Solution ratio. (9 points)

0.25:χ=5: 12 2.4:4=χ: =

Fifth, the operation problem. (4+4 points)

(1) Draw a rectangle with the reduction ratio of 1: 3;

②. Draw the figure behind the triangle magnifying glass according to the ratio of 2: 1.

2. According to the following description, show the location on the plan.

(1) Electric Power * is located at 45 northeast of Cultural Square 1 km.

(2) The TV station is located at 60 southwest of Cultural Square1500m.

(3) 2 km east of the municipal government and 30 km south of the cultural square.

(4) The Children's Palace is 500 meters northeast of the Cultural Square.

Sixth, solve the problem. (5+6+6+6+6+6=35)

1. The actual length of precision instrument parts is 4 mm, and it is 2 cm on the design drawing. What's the scale of this painting?

The ratio of male to female in the school chorus is 3:4. There are 24 boys in the choir. How many girls are there? (Answer in two different ways).

Method 1: Method 2:

3. What figure can the triangle in the picture below form when it rotates around AB? How many cubic centimeters is its volume?

A

3cm

B 4 cm c

4. The drum of the drum is a cylinder with a length of 2m and a bottom diameter of1.5m.. How far did the roller go after rolling once? How many square meters is the kerb area?

On the map with the scale of 1: 600000, the distance between the two places is12cm. How many hours does it take for a train to complete the journey from a place at a speed of 80 kilometers per hour?

During the cleaning, the students in Class 3, Grade 6 were divided into four groups. The number of students in each group is as follows:

(1) () has the largest number of people.

(2) The number of people cleaning windows accounts for ()% of the number of people in Class 3, Grade 6.

(3) There are () people in the class.

(4) The number of people cleaning the table is ().