Mid-term mathematics examination questions in sixth grade of primary school
First, see the topic clearly and think skillfully. (***22 points)
1, a number written directly. (8 points)
4.2? 0.5 = 1? 56 = ? 4 = 6
6? 1% = ? 0? = 1? 3? 1? 3 = 10 + ? =
2. Calculation of parting (***4 points)
? 420.5 - 294? 2.8? 2. 1
3. Solve the equation. (***6 points)
126 = 9.5 2x-x = 1.2 10-5% x =
Second, carefully scrutinize and judge carefully. (Typing correctly? , wrong number? ) (* * *10)
1. The diameter of a circle is proportional to its area. ( )
2. The reciprocal of 1 is1,and the reciprocal of 0 is 0 ().
3. For circles, squares and rectangles with equal perimeters, the circle has the largest area. ( )
There are 50 students in Class 4.6 (1), and two of them are sick today. The attendance rate today is 98% ().
5. The volume ratio of cylinder to cone is 3∶ 1.
Third, compare repeatedly and choose accurately. (*** 10 point)
1, saw a cylindrical wood with a diameter of 20 cm into three sections, and the surface area increased by () cubic centimeters.
A 3 14 B 1256 C 942
2, the following statement is correct ().
A, a ray is 50 meters long, and there are six big months and six small months in a year.
C, 20 10 is a normal year.
3. The original price of a commodity 1000 yuan. After the price increase of 20%, the price will be reduced by 20%. The current price is ().
A, 1000 yuan b, 1040 yuan c, 960 yuan
4. known a? =b？ 62.5%=c？ = 1(a, B and C are all not 0), and the smallest number among A, B and C is ().
The California arts center can't judge
5. The serial number of a column is 1, 2, 2, 3, 3, 4, 4, 4,? The 35th number. Yes ().
a、6 B、7 C、8
Fourth, think carefully and fill it out correctly. (***30 points)
1, 39.04050 The number of writing () rewritten into ten thousand units is ()
2、25%=3? ( )= =( ):24
3.2.05km = () m 3 hours and 24 minutes = () hours.
4. The decimal unit of1is (), and the smallest prime number is added with the decimal unit like ().
The greatest common divisor of 5, 16 and 24 is (), and the least common multiple is ().
6. The number of A is less than that of B, and the ratio of A to B is ().
7. Cut the iron wire with the length of 1m into small pieces with the length of 15m, and cut it () times, each piece is ()% of the total length.
8. The degree ratio of three angles of a triangle is 1: 2: 1, and this triangle is a () triangle.
9. A chicken and a rabbit live in the same cage, with 35 heads and 94 legs. There are () chickens and () rabbits.
10. There are 8 red balls, 4 white balls and 4 yellow balls of the same size in the pocket. The possibility of taking out 1 ball is ().
Tug-of-war will be held between 1 1 Grade 4 and Grade 6, with a single round robin system, and there will be () competitions in Grade 1.
12, fill in the blanks according to the law: 15, 2 10, 3 15, n ()
13, 1, 167%, 1.6 and 1.606 are arranged in descending order ().
14. On the drawing with the scale of 20: 1, the diameter of a part is 4 cm, and the actual length of the diameter of the part is () mm. ..
15, and the area of the shaded part on the right accounts for () of the whole figure.
Fifth, comprehensive application to solve problems. (***32 points)
1. The grain and oil wholesale market has 520 tons of rice, accounting for 40% of the total in the first week and 40% in the second week. How many tons are left? (column synthesis formula solution)
2. Melting a cylindrical iron block with a bottom radius of 3cm and a height of 4cm into a cone with a bottom radius of 2cm, and finding the height of this cone;
The expressway between the two cities is 256 kilometers long. Two cars, A and B, start from two cities at the same time and go in opposite directions. Four hours later, they met. The speed of car A is 3 1 km, and the speed of car B is how many km? (by equation)
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?
6. The following is the statistics of the number of boys and girls at the beginning of a primary school in Nanshan District in February 2005. Please make a comprehensive bar chart according to this table.
Annual series
male and female
Interstate 85
II. 90 98
Iii. 99 87
Four. 78 84
V. 90 92
VI 100 95
(1) There are () students in Grade 6 * * *.
(2) There are fewer boys than girls in Grade Two.
(3) The fourth-grade girls account for ()% of the total number of fourth-grade students.
(4) There are ()% more boys than girls in the first grade.
Elementary school sixth grade midterm mathematics examination questions 2
1. Fill in the blanks (23 points, 1? Two spaces in question 9 1, others 1 spaces 1)
1, Fuyuan county's fiscal revenue in 20 12 years reached 354 million yuan, which is pronounced as (), and rounded to several hundred million yuan is about () billion yuan.
2.2050 tons = () tons () kilograms 34 square meters =( )dm2
2 14 hour = () hour () minute 3.9l = () mlxkb 1.com.
3. Among 0.66 and 66.7%, the maximum number is () and the minimum number is ().
The ratio of 4.:6 to the simplest integer is (), and the ratio is ().
5. Find a rule to fill in the blanks:
1、4、9、 16、( )、; 1、3、2、6、4、( )、。
6. The decimal unit is (), and the decimal unit such as () is the smallest composite number.
7. Cut the one-meter-long rope into four sections on average, with each section accounting for () () and each section being () meters long.
8、( )︰8=34 =9? () = ()% = () folding
9. The school is 30 miles west of Xiaolan's home. The distance of about 500 meters, Xiaolan's home is () 30? About 500 meters
10, the area of the triangle is certain, and the base and height are proportional to ().
1 1. Water is synthesized by hydrogen and oxygen according to the mass ratio of 1︰8, and 5.4kg of water contains () kg of oxygen.
12, the volume and height of cylinder and cone are equal. The bottom area of the cone is 30cm2, and the bottom area of the cylinder is () cm2.
13, a box contains table tennis balls with numbers 2, 3, 5, 4, 3, 5, 1, 3, 3 and 4 respectively. The median of these numbers is (), so the probability of catching 4 is ().
14, Wang Fang is one year old, two years younger than his father's age 13, and his father is () years old this year.
15. In the physical education standard test held by the school, 200 students in grade six took part in the test, and the qualified rate was 98%. () The students reached the standard.
17. Some pigeons fly back to seven dovecotes, but at least two pigeons always fly back to one dovecote, and at least () pigeons.
18. The interest rate of rural credit cooperatives is 5.5%. Zhang Hong kept his lucky money in the credit union for five years, and he can get back () yuan when it expires.
19, there is a machine part with a length of 5 mm and a length of 2 cm on the design paper. The scale of this picture is (). The distance between the two places is 80 kilometers. If you draw on a map with a scale of 1: 400000, you should draw () cm.
Second, the judgment question. 5 points
1, the reciprocal of a number is not necessarily less than this number. ( )
2. Any two trapezoid with equal base and equal height can be combined into a parallelogram. ( )
Xiaohua said that I was born on February 29th, 2002. ( )
4. Natural numbers are either prime numbers or composite numbers. ( )
5, chickens and rabbits in the same cage, * * * has 8 heads and 26 legs, so there are 5 chickens and 3 rabbits. ( )
Third, multiple choice questions. 5 points, 65438+ 0 point for each question.
There are 1, 13 table tennis balls, of which 12 have the same mass, and the other is lighter. If you weigh it with a balance, you can find this table tennis at least () times.
A.2 B.3 C. 4
2. Put 10g sugar into 10g water, and the ratio of sugar to syrup is ().
a、 1︰ 1 1 B、 1︰ 10 C、 1︰9
3. The volume of water increases after freezing 1 10, and decreases after freezing into water ().
a、 1 1 1 B、 1 10 C、 19
4, a primary school to reflect the situation between students of all grades and the whole school students, should draw () statistical chart.
A, horizontal bar b, dotted line c, fan-shaped
5. Seen from above, the shape of this object is ().
A, B, C,
Fourth, calculation. 30 points
1, write the result directly. (4 points)
53+ 147= 0.45? 100= 5= 4.8? 99+4.8=
1 1? = 2? 0.0 1= 3+4-3+4= 2.68-0.93-0.07=
2, how to calculate as simple as possible. (16)
9 1- 10? 0.25? four
35? [ ? ( 1- )]
4 1? 10 1 5?
8.5-(5.6+4.8)? 1.3 12? ( 14 - + )
3. Solve the equation. (6 points)
5(X+ 1.2)= 6.5 = X: 10 X-=
4. Column calculation. 4 points
1, a number is 20, what is this number?
○ 2. What is the quotient of the difference between1and their sum?
Fifth, solve the problem. (29 points)
1, the school choir has 30 people, the basketball team is chorus, and the dance team is basketball. How many people are there in the dance team? (3 points)
2. In the process of returning farmland to forest, the survival rate of a sapling is 96%. Our village will ensure that 2940 trees will be planted this year. How many trees should we plant at least? (3 points)
A batch of books, if you pack 50 books, you can pack 330 bags. Now, if you pack 55 books, how many bags can you pack? (Proportional solution) (3 points)
There are 2400 literature books in the school, 40% less than science books. How many science books are there? (3 points)
A car factory originally planned to produce 80 cars per month last year, but actually produced 96 cars per month. It actually finished the task several months ahead of schedule. (4 points)
6. An expressway was built 750 meters in the first week and 25 meters in the second week, which is exactly half of the total length. How long is this road? (5 points)
7. The bottom radius of the cylindrical pool is 2m from the inside out, and the pool is 3m high. How many square meters of tiles do I need to buy to put tiles in the pool? If the pool is full of water and the water depth is 2.5 meters, how many cubic meters of water is there in the pool? (8 points)
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