1. Fill in the blanks: (3 points for the second question, 4 points for the sixth question, 2 points for each question, ***23 points)

1、 + + + + =( )×( )

2. Cement 10 ton, tons have been transported, and () tons remain; 10 tons of cement, transport () tons and leave it; 10 tons of cement, transported away, leaving 4 tons.

3. fill in ">", "

× ○ × ÷ ○

4. Li Nainai bought government bonds with 50,000 yuan five years ago, with a term of five years. The annual interest rate at that time was 3. 14%. This year, Li Nainai can get () yuan.

5. Look at the pictures and fill in the blanks.

(1)A is B; (3) After extending B, A is as long as B. ..

(2)B is ()% of A; (4)B shortens ()% of A. ..

6. Look at the picture on the right and fill in the blanks:

(1) Eggplant accounts for ()% of the total area, and the area occupied by eggplant is.

It's 92 square decimeters, and the area of cucumber is ()

Square decimeter, the area of green vegetables is ()

Square decimeter.

(2) In the fan-shaped statistical chart, the central angle indicating the number of cucumbers is () degrees.

7. A tree was planted in Maosenchang this year, and tree B survived. The survival rate is (). If a=3000 and the survival rate is 96%, then b= ().

8. The decimal unit is the reciprocal of ()%.

9. Someone received a bonus 240 yuan, including 50 pieces from 2 yuan, 5 yuan and RMB 10, of which 2 yuan and 5 yuan have as many pieces, so there are () pieces of RMB 10.

10, as shown on the right, the circumference of the circle is 6.28 cm, and the area of the circle.

Equal to the area of a rectangle. The shaded area is

() Square centimeter, circumference () centimeter.

Second, judge. (6 points)

1, b is a, or the ratio of b to a is 4: 5. ……………………( )

2. A line segment with two endpoints on a circle is called a diameter. ………………………………( )

3. All trapeziums are not axisymmetric figures. ………………………………………( )

4.A is 25% more than B, and B is 25% less than A. ....................................................... ()

5. Because ×× = 1, these three numbers are reciprocal. ……………………( )

6. If the side length of a square is equal to the diameter of a circle, the area of the square is greater than that of the circle. ( )

Third, choose. (6 points)

1, the following figures, can be written as a percentage is ().

The length of a rope is meters. B and A are 1.5 times of B. Xiaohong is 20 kilograms lighter than Xiaoming.

2. The product of two numbers between and in each group below is ().

a、B、C、7、D、 1

3. Give a sweater a 10% discount first, and then increase the price by 10%. Now the price is compared with the original price ().

A, cheap b, expensive c, the same.

4. The total length of the stadium runway is 400 meters, in which the ratio of the length of the curved part to the straight part is 2: 3, and the curved part is shorter than the straight part ().

a、66.6% B、50% C、33.3%

5. The number of girls in a class is equal to the number of boys. The following statement is incorrect ().

A, girls are boys150%; B, there are 20% more girls than boys; C, girls account for the whole class.

6, if a, b, c are greater than 0, and a × = b ÷ = c ÷ 2, the following arrangement is correct ().

a、a>b>c、b>a C、a>c>b D、c>a>b

Four, careful calculation (30 points)

1, the off-model calculation can be simplified. (18)

( 1) ÷( ÷ + ) (2) × ÷ ÷

(3) × 13+ × 13 (4)

(5)( + )×9× 17 (6) + + + + +

2. Solve the equation. (4 points)

( 1) - χ= (2)( 1+30%)χ=45.5

3. Find out the area of the shaded part in the picture below. (Unit: meter) (8 points)

Exploration and thinking of verb (abbreviation of verb). (10)

1、 + = × + = ×

+ = × + = ×

Would you please write two A+B = A according to the above example? Formula of B (6 points)

( ) 、 ( )

2. Most manhole covers in the street are designed to be round. Can you explain the truth with what we have learned about circles? (4 points)

Sixth, skillfully solve life problems. (25 points)

1, Lele walked from A to B, completed the journey at 1 hour, and completed 20% of the journey the next hour. At this time, it is 2 kilometers away from the midpoint of the two places. How many kilometers is it between A and B? (5 points)

The teacher gave Wang Ming and Liu Qiang some money to buy prizes. Wang Ming said, "This money can buy 10 pens." Liu Qiang said: "This money can buy 15 ballpoint pen." If you buy as many pens and ballpoint pens with this money, how much can you buy each? (5 points)

3. Read the announcement and answer the following questions.

(1) What's the total bonus of this prize-winning sales activity? (2 points)

(2) What is the winning percentage?

(3) If all lottery tickets are issued, how many yuan of products will be sold at least? (2 points)

(4) What percentage of sales do lottery tickets account for? (3

4. Xiaohong's mother deposited 6000 yuan in the bank on June 1 this year, with a fixed term of three years and an annual interest rate of 5.45%. What is the principal and after-tax interest at maturity?

A batch of 540 saplings will be distributed to the fifth and sixth grade students for planting. There are 120 students in grade five and 150 students in grade six. How many saplings should you get in each grade if you allocate according to the number of students?