(Examination time: 100 minute, full mark 100 minute)

Title number

one

two

three

four

five

six

Total score

grade

Fill in the blanks. (25 points)

1, Burj Khalifa, formerly known as Burj Khalifa, is the tallest building and man-made building in the world, with a total investment of1495 million yuan, pronounced as (), and rounded to the nearest hundred million yuan is about () billion yuan.

The 20th World Cup will be held in Brazil next year. Next year is (), and there are () days in the whole year.

3. 5.05l = () l () ml 2h15min = () min.

4.()÷ 36 = 20: () = () (decimal) = ()%

5. Divide the 3-meter-long wire into 8 parts on average, each part is () of this wire, and each part is () meters long.

6. The ratio of the simplest integer to 0.8 is (), and their ratio is ().

7. If the number of A equals the number of B, the ratio of B to A is (), and A is less than B by ()%.

8. In the test, Xiaoming got an average score of A in Chinese, Mathematics and English, B in Chinese and Mathematics, and () in English.

9, 5 grams of sugar into 20 grams of water, sugar accounts for ()% of sugar water.

10, a 3mm long part is 375px on the drawing, and the scale of this drawing is ().

1 1. The sum of the sides of a cuboid is 48 cm, and the length, width and height are three continuous natural numbers. The surface area of this cuboid is () square centimeters and the volume is () cubic centimeters.

12. If one right-angled side of a right-angled triangle is 5cm and 3cm respectively, a cone will be obtained after one rotation. The volume of this cone is () cubic centimeters.

13. Cut a cube with a side length of 8 cm into the largest cylinder. The surface area of this cylinder is () square centimeters, and the cutting volume is () cubic centimeters.

Second, judge. (5 points)

1, there are 102 teachers and 100 teachers in the whole school, so the attendance rate is 100%. ( )

2,0 is a positive number. ( )

3. If A is 25% more than B and B is 20% less than A ... ()

4. If the radius and height of the cylinder bottom are doubled, the volume will be quadrupled. ( )

5. The area of triangle must be equal to half the area of parallelogram. ( )

Third, choose. (5 points)

1, there is a rope, and there is still rice after cutting, so ().

A, truncated B, the remaining C, the same D is incomparable.

2. Figures A and B on the right are the midpoint of the length and width of the rectangle, respectively, and the shaded area is the rectangle ().

A, B, C, D,

Xiaoming has four different science books and three different story books. In an activity to donate books to poor schools, he is going to donate a science and technology book and a story book. He has () different ways to donate books.

a、3 B、4 C、7 D、 12

4. For a commodity, the price is increased by 20% first, and then the price is reduced by 20%. Compared with the original price, ().

A, improve b, reduce c, constant d, uncertainty

5. Take it out of pile A and give it to pile B. At this time, the quality of the two piles of coal is equal. It turns out that the mass ratio of coal pile A to coal pile B is ().

A3:4 B、7:5 C、5:7 D、8:6

Fourth, calculation. (29 points)

1, a number written directly. (5 points)

9.9 + 9= 2.5×40= 2. 1- 2.0 1= 8.5÷40%=

1- + = +0.75= 12÷ =

0.3? +0.2? = ×= 0.25×4÷0.25×4=

2. Off-mold calculation can be simplified. (12)

①20 13×0.25 + 20 13×0.75 ② 1.25×32×0.25

③ 12×( +-) ④ + ( - )÷

3. Solve equations or proportions. (6 points)

① 2x + 3×0.9 = 24.7 ②:x = :24

4. Text questions. (6 points)

What is the difference between the sum of ① 12 and subtraction?

② A number is 2 larger than 36. What's this number? (column equation solution).

Verb (abbreviation for verb) Figure and calculation. (7 points)

1. Complete the work on the grid paper as required. (3 points)

(1) Translate Figure A to the left by 5 squares.

(2) Rotate Figure B clockwise by 90 degrees according to point O. ..

(3) Take the straight line L as the axis of symmetry, and draw an axisymmetric figure of the known figure C. ..

2. The side length of the square is 4 cm, and the area of the shadow part is found. (4 points)

Sixth, comprehensive application. (29 points)

1. The bottom radius of the cylindrical glass container is 250 pixels. Take an iron ball out of the water in this container, and the water level drops 100px. What is the volume of this iron ball? (4 points)

2. Teacher Zhang deposited 20,000 yuan in the bank for two years, with an annual interest rate of 2.32%. 20% interest tax should be paid when interest is withdrawn after maturity. How much interest can I get after tax? (4 points)

3. An engineering team paved a section of road, originally planned to pave 9.6 kilometers every day, which was completed in 15 days. In fact, 2.4 kilometers are paved every day than originally planned. How many days will it actually take to pave it? (Answer in proportion) (4 points)

4. On the school plan with the scale of 1: 1000, the length of the rectangular playground is 12 cm and the width is 5.5 cm. What is the actual area of this playground? (4 points)

Two cars, A and B, started from two places 350 kilometers apart at the same time, walked in opposite directions, and met two hours later. It is known that the speed ratio between car A and car B is 2 ∶ 3. Find the speed of car A and car B .. (4 points)

Statistics of Gold Medal of China Sports Delegation in 27th-30th Olympic Games

June 20 13

6. The following are the gold medals won by China sports delegation in the last four Olympic Games. (4 points)

Number of sessions

Twenty-fifth session

Twenty-sixth session

Twenty-seventh session

Twenty-eighth session

Number of gold medals/piece

16

16

28

32

Number of silver medals/piece

22

22

16

17

27th (Sydney)

28th (Athens)

The 29th session (Beijing)

30th (London)

China

28

32

5 1

38

(1) Please make a broken line statistical chart according to the data provided in the table. ( 1)

(2) The proportion of gold medals won by the China delegation in the 30th London Olympic Games to the total number of medals, so how many medals did the China sports delegation win in the 30th London Olympic Games? (2 points)

(3) Please predict how many gold medals our sports delegation may win at the 3 1 Olympic Games in Rio de Janeiro, Brazil in 20 16. Is everyone's prediction correct? Let's wait and see! ( 1)

7, a barrel of gasoline, the quality of the barrel is 8% of gasoline, after pouring out 48 kilograms of gasoline, the quality of oil is equal to half the quality of the barrel, how many kilograms does the oil barrel weigh with the original gasoline? (5 points)

Reference answers and grading standards

Fill in the blanks. (65438+ 0 point per grid)

11495 million 15 2 20 14 365

3、 5 50 135 4、 9 80 0.25 25 5、

6、 15:32 7、5:4 20 8、3a-b 9、20

10,50:11,94 6012,78.5 and 47.113,301.44 40/kloc.

Second, judge. (65438+ 0 point for each question)

1、× 2、× 3、√ 4、× 5、×

Third, choose. (65438+ 0 point for each question)

1、A 2、B 3、D 4、B 5、B

Fourth, calculation. (29 points)

1, a number written directly. (0.5 points per question)

18.9 100 0.09 2 1.25 14 0. 13 16

2. Off-mold calculation can be simplified. (12)

①20 13×0.25 + 20 13×0.75 ② 1.25×32×0.25

= 20 13x(0.25+0.75)20 13x 20 13x(0.25+0.75)2065438

= 2013×1............................... 2 points =10×1....................... 2 points.

= 2013 ......................... 3 points =10 ...................... 3 points.

③ 12×( +-) ④ + ( - )÷

= 12× (+-) .......... 1 =+(-) ÷ ... 1.

=12×1.......................... 2 points =+..................2 points.

=12 ........................ 3 points =...................3 points.

3. Find the unknown X. (6 points)

① 2x + 3×0.9 = 24.7 ②:x = :24

Solution: 2x = 24.7-2.7 ...............................................................................................................................................................

X = 22 ÷ 2.....................................................................x = 18 \ ...............................

X =11... 3 points.

4. Text questions. (6 points)

①× 12-...2 points ② X-36× = 2...2 points.

= 9 ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

Verb (abbreviation for verb) Figure and calculation. (7 points)

1、

2、3. 14×42÷4 =3 14px？ ........................, two points.

4 × 4 ÷ 2 = 200px？ .............................., 3 points.

12.56-8 = 1 13.99999999999 px？ ............................, 4 points.

Sixth, comprehensive application. (29 points)

1、3. 14× 10? × 4 .......................................... 2 points.

= 3.14× 400 ................................................. 3 points.

=3 1400px？ ........................., 4 points.

22,000× 2.32 %× 2 = 928 yuan ... 2 points and 3 points. Solution: it actually takes x days to lay ... 0.5 minutes.

928×20%= 185.6 yuan ... 3 points (9.6+2.4) x = 9.6× 15...2.5 points.

928- 185.6=742.4 yuan RMB 3.5 points.

A: Then each book can be bound with 24 pages. The actual laying needs 12 days. .........................., 4 points.

4, 12 = 12000 (cm) ... 1 point 5,350 ÷ 2 = 1 75 (km) ...1min.

5.5 lbs = 5,500 cm ... 2 points 175×= 105 (km) ... 2.5 points.

12000× 5500 = 66 million square centimeters ... 3 points 175- 105=70 (kilometers) ... 3.5 points.

66 million square centimeters = 6,600 square meters ... 3.5 minutes A:A car is 70 kilometers per hour.

The actual area of this playground is 6600 square meters. ... 4 minutes b train speed 105 km. 4 points

6.( 1) Statistics of gold medals won by China sports delegation in 27th-30th Olympic Games (1).

June 20 13

(2)38÷= 88 (pieces) ... 1.5 points (3) Omit (1 minute)

A: At the 30th Olympic Games, the China sports delegation won 88 medals. ... two points

7. 1 ÷ 80% = ........... 1-= 12 .......................................................................2.

48÷ 12 =4 kg ................ 3.5 points 4 ÷ 80% =50 kg ........... 4.5 points.

Answer: The oil drum weighs 4 kilograms, and the original gasoline weighs 50 kilograms.