Fill in the blanks.

1, a number consists of 10 millions, 8 tens of millions, 10 1, and this number is ().

2、3. 1÷0.7 = 4…… ( )。

3.2.05km = () km () m.

4、

5、 - =2.5=( )∶4。

6, 2.5: 1 The simplest ratio is ().

7、

Judgment (2 points for each question, ***8 points)

If a×b×c= 1, then a, b and c are reciprocal. ( )

The sum of the two internal angles of a triangle is less than the third internal angle, and this triangle must be an obtuse triangle. ( )

The area of a square is out of proportion to its side length. ( )

Find the surface area of a cylinder, which can also be expressed as: bottom perimeter × (height+bottom radius). ( )

Choice (2 points for each question, ***8 points)

1, a number (except 0) divided by, that is, the number ().

A, 3 times smaller B, 3 times larger

2. If 20% of the number A is equal to 20% of the number B, then ().

A, number a equals number b B, number a is greater than number b C, and number a is less than number b.

3. A piece of iron sheet with a length of 7 decimeters and a width of 5 decimeters can be cut out at most () a circular iron sheet with a diameter of 2 decimeters.

a， 1 1 b，6

4, the price of a commodity rose by 20%, and the original price rose by 20%, the price of the commodity ().

A, higher than the original price B, constant C, lower than the original price

Draw a triangle with the given triangle (as shown in the figure below):

Triangle with the same base and equal area; (2) Parallelogram with the same base and equal area.

bottom

application problem

If a car travels from A to B at a speed of 35 kilometers per hour, it will take 6 hours. How many hours will it take to get there if you drive at a speed of 42 kilometers per hour?

A 400-meter-long road was built, and it was 120 meters in three days. According to this calculation, how many days will it take to complete this road?

In a book, the number of pages read is twice as many as the number of pages not read, which is 15 pages. Knowing that 35 pages have been read, find the number of unread pages.

A project invested 200,000 yuan, 350,000 less than planned. What is the percentage of saving investment?

A cubic block with a side length of 3 cm is processed into the largest conical block. Find the volume of the processed cone-shaped wood block.

There are fewer male employees than female employees in a workshop. There are more female employees than male employees 10. How many male employees are there in this workshop?

It takes 10 days for Party A and 15 days for Party B to process a batch of parts;

How many days will it take for Party A and Party B to finish processing these parts?

It is known that when Party A and Party B finish the processing task, Party A will process 20 more parts than Party B, and ask for the number of these parts.

The number of male employees in a workshop is 1 times that of female employees. After 8 female employees are transferred out, the ratio of female employees to male employees is 1: 2. How many people are there in this workshop?

Primary school mathematics volume 1 1 final comprehensive examination paper

1. Fill in the blank: [24%] Class name and student number.

In 2002, the per capita income of urban residents nationwide was 7,703 yuan, an increase of 12.5% over the first half of the year. The numbers on the horizontal line are percentages (), decimals () and fractions ().

2.( )÷5=0.6==( ):40=( )%

3. 50 people in the class did a math problem, 10 people were wrong. The correct rate of this problem is ().

4. A work was originally planned to be completed in 10 day, but it was actually completed in 8 days, which shortened the working time and improved the working efficiency.

5. After reading a story book, the ratio of unread pages to read pages is ().

6. The ratio of male teachers to female teachers in a school is 3:5. Male teachers account for the whole school, and there are ()% more female teachers than male teachers.

7.a is twice that of B, and B is C, so A: B: C = (): (): ().

8. Cut out a disc with a radius of 1 cm on a rectangular piece of paper with a length of 1 cm and a width of 9 cm.

You can cut () wafers at most.

9. When the radius of a circle increases by 50%, its area increases by ()%.

10. A glass of juice, drink it and fill it with water, then drink it and fill it with water. At this time, the glass

The ratio of water to juice is ().

2. Choose the serial number of the correct answer and fill in (). 〖 16%〗

1. If a is a natural number greater than zero, then the largest number in the following categories is ().

「① a× ② a÷ ③ ÷a」

2. In the following groups, the group with equal proportion is ().

〖 ① := 4:5 ② :=: ③ 3:2.5 = 6:5 〗

3. Number A is number B, number B is number C, and number A is number C ().

[① ② 25 times ③]

4. It is known that A is equal to B, then ().

「①a = b②a÷b③b÷a」

5.5 kilograms of oil, how many kilograms are left? The correct formula is ().

〖 ① 5× ② 5×( 1-) ③ 5- 〗

6. The current price of a commodity is 200 yuan, which is lower than the original price by 50 yuan, which is lower than the original price ().

〖 ①20% ② ③25% 〗

7. In the figure below, () has the least symmetry axis.

[① Square ② Rectangular ③ Equilateral Triangle ④ Circular]

8. In the figure below, the centers of four circles are on a straight line, and the perimeter of the big circle is compared with the perimeter of three small circles, and the result is ().

【 ① The circumference of the great circle is longer ② The circumference of the great circle is shorter ③ Equal 】

3. Calculation problem: [9+6+6+ 12+5 * * * 38 points]

1. Numbers written directly:

÷= ÷3= ××=

×9×= ÷2= 5÷-÷5=

2.7-= 6×= ( 1.6+3.2)×0. 125=

2. Simplify the following ratio and find the ratio:

: 15 0.8: 1.5:

3. Solve the equation:

X \ = 7.2-2X = 3.8 X+X = 15

4. How to simply calculate the following questions:

÷(-)× ×(+)+

÷+× -(-)÷

5. Find the area of the shaded part in the figure below. (Unit: decimeter)

4. Application question: (10+5+5+6 * * * 26 points)

1. The following questions are only listed and not calculated:

There are 25 boys in Class One, Grade Six, accounting for the whole class. How many students are there in the class?

Column type:

Xiaohong has 36 stamps, Xiao Xin's stamps are Xiaolin's and Xiaoming's stamps are Xiao Xin's. How many stamps does Xiaoming have?

Column type:

(3) The actual investment of a project is 3.8 million yuan, which is 200,000 yuan less than the planned investment. What percentage was saved?

Column type:

(4) Team A completed a project in 50 days, while Team B completed it in 70 days. What is the ratio of team A and team B to complete this project every day?

Column type:

5] One-time deposit in the bank in 400 yuan for 5 years. If the annual interest rate is 2.88%, how much after-tax interest can you get at maturity?

Column type:

There is a circular fountain in the Oriental Plaza, with a circumference of 37.68 meters. How many square meters is this fountain?

3. A has a house worth 300,000 yuan and sold it to B at a 10% discount (90%). After a period of time,

When the house price rises 10%, how much does A lose when B is sold to A?

4. The garment factory produces a batch of school uniforms, and the ratio of the number of sets completed before 10 to the total number of school uniforms is 1:3.

If 150 sets are produced, just 40% of this batch of school uniforms can be completed. How many school uniforms are there?