Fill in the blanks.

1. A number consists of five tens and four tenths. This number is written as ().

2.9.08km = () km () m

The reciprocal of 3.0.8 is ().

4. Jinghua Middle School has 120 teachers, and the ratio of old, middle-aged and young teachers is 1: 3: 4, with middle-aged teachers ().

5.2 :5= =( )%。

6. In proportion, the product of two external terms is certain, and the two internal terms are directly proportional to ().

7. When x=0.5, the value of 4x+3 is (). When x = (), 4x+3=7.

8. The circumference of the cone base area is 12.56 cm, and the volume is 37.68 cubic cm. The bottom area of the cone is () square centimeters and the height is () centimeters.

9. 100g sugar is soluble in water, and the bran content of syrup is 12.56. If you add 200 grams of water, the simplest integer ratio of sugar to syrup is ().

10.

As the picture shows, the area of the rectangle is 20 square centimeters. If you draw a person's largest semicircle in this rectangle, the area of this semi-ballpoint pen is () square centimeters.

Second, judge the following questions, correctly draw "√" in (), and wrongly draw "×".

1. All prime numbers are odd except 2. ( )

2. The denominator is a number and the numerator is a prime number. The smallest and simplest score is. ( )

3. The sum of the internal angles of an obtuse triangle and a triangle larger than the tax angle. ( )

Third, choose the serial number of the correct answer and fill in ().

1. The actual distance between Party A and Party B is 320km, and the distance measured on the map is 4cm. The scale of this map is (). ( 1) 1:80(2) 1:8000(3) 1:8000000

2. Comparing the crowded degree of the two pools, the result is ().

(1) Pool A is crowded; (2) Pool B is crowded; (3) The two pools are the same.

Fourth, use a simple method to calculate the following questions. (Write a simple calculation process)

1. 16.4 + 3.5 + 83.6 + 166.5 2.×38.3 + 1.7×

Five, the formula to calculate the following problems.

1.498+9870÷35 2.420.5 - 294÷2.8×2. 1

3.4.÷

5.÷

Six, column calculation.

1 What's the difference? Divided by 20 and 18?

2. A number minus 15% is 5. 1. What's this number? (column equation solution)

Seven, find the volume of the following combination graphics. (Unit: cm)

Eight, application questions.

1. At the 27th Olympic Games, the statistics of medals won by China athletes are as follows:

gold medal

silver medal

bronze

28 yuan

16 yuan

15 yuan

(1) What percentage of the total medals are gold medals? (2) What is the percentage of bronze medals in the number of banks?

(3) What is the proportion of gold medals compared with bronze medals?

2.a car from Dongcheng to Xicheng, with a speed of 42 kilometers per hour, arrives at B city in 5 hours; It took four hours to get back. How many kilometers did you drive every hour on average? (Use proportional solution)

The height of the Egyptian pyramids is about140m now, which is lower than when it was built. How many meters was it when it was completed?

4. It takes 15 days for Team A and Team B to jointly build a canal, and the efficiency ratio of Team A and Team B is 2: 3. How many days will it take if Team B builds the canal alone?

The price of table is 3.2 times that of chair. It costs 2670 yuan to buy five chairs and four tables. What is the unit price of each chair?

20 1 1 simulation test questions for mathematics graduation in the sixth grade of primary school

Students, when you are about to enter the seventh grade, please use your wisdom and ability to reap the fruits of learning! Remember: everyone's success has to go through countless tests, and success or failure is very important to us.

1. Fill in the blank: (***2 1 min, each grid 1 min)

1 and 70305880 are pronounced as () and rewritten as () in units of "ten thousand", and the mantissa after omitting ten thousand digits is about ().

2.20 10 year 16 Guangzhou Asian Games will be held on 20 10/0 month12-165438+27 days, so the Asian Games will need ().

The ratio of 3,2:1to the simplest integer is (), and the ratio is ().

4,3 ÷ () = () ÷ 24 = = 75% = () times.

5. As shown in the figure, the radius at the bottom of the cylinder is (). Put this circle.

The edge of the column can be expanded into a rectangle. This rectangle

The area is (), and the volume of this cylinder is ().

(Pi is π)

10cm

8 cm

6、 = , = ,

7. 1 kg brine contains 50 grams of salt, which is ()% of brine.

8, 7 and 8 can be divisible by 2, 3 and 5 at the same time. Only one digit can be filled with (), and at most, one digit can be filled with ().

9. The ratio of boys to girls in a school is 4: 5, and there are more girls than boys.

( )%。

10. The distance between two maps in a city map is 10cm, which means the actual distance is 30km. The scale of this map is ().

2. True or false questions: (* * * 5 points for each question, 1 point)

1, natural numbers (except 0) are either prime numbers or composite numbers. ( )

2. Only three-fifths of the scores are less than four-fifths and more than two-fifths. ( )

The height of cylinder and cone is the same, and the sum of their volumes is 36 cubic meters, so the volume of cone is 9 cubic meters. ( )

4. Of the 90 parts produced, 10 is rejected, and the qualified rate is 90%. ( )

5. "Frog has four legs, two eyes and a mouth; Two frogs have eight legs, four eyes, two mouths and three frogs ... Then the number of frogs is proportional to the number of legs "().

Iii. Multiple choice questions: (5 points for each question, 1 point)

1, 20 1 1 year, 1 month, with * * * days in February and March.

A.89 B.90 C.9 1 D.92

2. Divide a parallelogram into two trapeziums at will, where () is always equal.

A. Height B. Sum of upper and lower bottoms C. Perimeter D. Area

3. The rectangle is 5cm long and 3cm wide, indicating the score of ().

A. length is greater than width B. length is less than width C. width is less than length D. width is greater than length.

4. When the numerator of a fraction decreases by 3 times and the denominator increases by 3 times, the fractional value decreases by () times.

A.3b.6c.9d remains unchanged.

5. The following x and y are inversely proportional ().

A.Y =3+ X B.X+Y= C.X= Y D.Y=

Four, calculation questions: (***35 points)

1, a number written directly. (65438+ 0 point for each question)

26×50= 25×0.2= 10-0.86= 24× =

÷3= 125%×8= 4.8÷0.8= 8÷ =

12×( + )= 1- 1÷9= 2.5×3.5×0.4=

2. Off-mold calculation. (2 points for each question)

0.25× + 2.5% 9.6- 1 1÷7 + ×4

3. Solve the ratio and equation. (3 points for each question)

5.4+2X = 8.6 2.5:5 = x:8

0.2 = 1-

4. Column calculation. (4 points for each question)

(1) 180 is more than 50% of 10. What's this number?

(2) What is the product of the quotient of 0.15 divided by 5 and multiplied by 5?

Verb (abbreviation of verb) problem solving: (***34 points, 4 points for the first 7 questions, and 6 points for the eighth question)

1. The motorcade delivered a batch of relief materials to the disaster area, traveling at a speed of 80 kilometers per hour and reaching the disaster area in five hours. When I come back, I will drive at the speed of 100 km per hour. How long will it take for this team to return to the starting point?

The bookstore has a set of popular science books in 96 yuan at the original price, which are now sold at a 60% discount. How much cheaper can I buy a set? If you buy 6 sets, will 360 yuan be enough?

3. The exchange rate of postal remittance is 1%. Xiaoming's father, who works outside the home, sends money to his family, and he pays the remittance fee from 38 yuan. How much did Xiaoming's father remit home?

The car factory planned to assemble 4000 cars in 25 days, which was actually completed five days ahead of schedule. How many cars are actually assembled every day on average? (Equation solving)

5. A rectangular glass fish tank (there is no glass at the top of the fish tank), which is 5 decimeters long, 3 decimeters wide and 3.5 decimeters high. How many square decimetres of glass does it take to make this fish tank?

6. Find out the area of the shaded part in the picture below. Unit: meter (π is 3. 14)

25

20

7. A cylindrical glassware with a bottom radius of 6 cm contains some water, and a conical plumb hammer with a height of 9 cm is immersed in the water. When the plumb hammer was taken out of the water, the water level dropped by 0.5 cm. How many square centimeters is the bottom area of this cone? (π takes 3. 14)

8. The following are statistics and charts of five shuttlecock kicks by Xiao Li and Xiao Ming respectively.

Statistical analysis of Xiao Li kicking shuttlecock five times

frequency

1 time

second

the third time

the fourth time

the fifth time

Quantity (unit)

10

13

25

20

30

According to the data in the statistics table, please draw the dotted line of Xiao Li kicking shuttlecock in the following statistics table according to the legend.

Statistical chart of five shuttlecock kicks by Xiao Li and Xiao Ming.

Look at the picture and answer the following questions.

(1) How many times did two people play the same amount of badminton?

____________________________________________________

② On the whole, who is better at kicking shuttlecock? (briefly explain the reasons)