The sixth grade elementary school mathematics final exam examination questions one.
1. Fill in the blanks (***20 points, including 2 points for 1 question and 2 points for the second question, each being 1 point).
1, 3 12 tons = () tons () kilograms 70 minutes = () hours.
2、( )∶( )=40( ) =80%=( )? 40
3, () tons is 30 tons 13, and 50m is more than 40m ()%.
There are 48 students in Class 6 (1) today, and two of them are on leave due to illness. The attendance rate of students in Class Six (1) today is ().
The ratio of 5.0.8: 0.2 is (), and the simplest integer ratio is ().
6. The number of students in a class is between 40 and 50, and the ratio of male to female is 5: 6. There are boys () and girls () in this class
7. From City A to City B, it takes 5 hours by truck and 6 hours by bus. The simplest ratio between the speed of the truck and the speed of the bus is ().
8. Master Wang earns 2000 yuan a month. According to the new national tax law, the portion exceeding 1600 yuan is subject to 5% personal income tax. Master Wang's actual monthly salary is () yuan.
9. Xiaohong 15 hours drives 38 kilometers, she drives () kilometers per hour, and it takes () hours to drive 1 kilometer.
10. Use a rope with a length of12.56m to form a circle. The diameter of this circle is () and the area is ().
1 1. On a rectangular iron plate with a length of 10 decimeter and a width of 5 decimeters, at most () circular iron plates with a diameter of 2 decimeters can be intercepted.
12, please fill in the appropriate graphic name in brackets according to the number of graphic symmetry axes. Round, (), (), rectangle.
Second, the judgment (5 points, play correctly? , wrong number? )
The 7m 1, 18 are as long as the 8m 17. ( )
2. The areas of two circles with equal perimeters must also be equal. ? ( )
3. 1 100 and 1% are both fractions with denominator of 100, and their meanings are exactly the same. ( )
4.5 kg of salt is dissolved in 100 kg of water, and the salt content of brine is 5%. ? ( )
5. The previous item of the ratio increased by 10%. To keep the proportion unchanged, the latter term should be multiplied by 1. 1. ? ( )
III. Choice (5 points, fill the serial number of the correct answer in brackets)
1, if a is a non-zero natural number, the largest calculation result in the following formula is ().
A. answer? Bachelor of 58? 58 degrees. 32d 32？ a
2, a rope is cut into two sections, the first section is 37 meters long, and the second section accounts for 37 of the total length. Compared with ().
A. the first paragraph is B. the second paragraph is C. the same length is D. it cannot be determined.
3. The forest farm planted 10000 seedlings last year, of which 1000 seedlings were randomly selected at the end of the year, with a mortality rate of 2%. You predict that the survival rate of these saplings planted in the forest farm is ().
A.20% b 80% c 2% d 98%
4, a farm, raising 1200 ducks, raising 35 more chickens than ducks, how many more chickens than ducks? The correct formula is ()
A. 12000? 35 B. 1200+ 12000？ 35 C. 1200- 12000？ 35 D. 1200？ 35
5. To cut a circular paper with an area of 12.56 cm2, at least one paper with an area of () cm2 (? Take 3. 14).
A. 12.56
Four, the calculation problem (***35 points)
1, write the number of 5 points directly.
67 ? 3= 35 ? 15= 2-37 = 1+2%=
78 ? 7 10 = 5? 23 = 43 ? 75% = 78 ? 4? 87 =
16 +56 ? 15 = 12 ? 99+99? 12 =
2. 9 points for solving equation
X-27 X= 1 14 X？ 18 = 15? 23 40%X- 14 =7 12
3. How to calculate the score of 12 is as simple as the following questions.
72 ? 58 -32 ? 85 1-58 ? 2528 -3 10
(23 +4 15 ? 56 )? 202 1 45 ? [(35 + 12 )? 2]
4, column comprehensive formula or equation calculation 6 points
1, 20% of a number is 100, what is 35 of this number? 2. 58 of a number is less than 20 times 4. What's this number?
V. Application Problems (***3 1 min)
1, only column types are not counted (8 points):
Wangzhuang Coal Mine produced 2.5 million tons of coal last year, an increase of 250,000 tons this year. What percentage has the output increased?
(2) The original story book of 20 yuan is now sold at 10% off the original price. What's the current price?
③ Repairing a batch of books, 30 books have been repaired, accounting for 25% of the number of books that have not been repaired. How many books are there in this batch?
(4) Xiaohua's father deposited 5,000 yuan in the bank for two years at an annual interest rate of 2.70%. How much interest can he actually get at maturity? (Free of interest tax)
2. Answer the following questions completely (***23 points, including 3 points for the fifth question and 4 points for each other question):
① Hong Guang Soap Factory has produced 45,000 boxes of soap in February 65438, but not 25 boxes. How many boxes of soap are planned to be produced in 65438+February?
② A highway maintenance team plans to build a highway with a length of 1200m. 15% of the total length was repaired in the first week and 13% of the total length was repaired in the second week. How many meters is the first week less than the second week?
③ The school has 180 basketball, football and volleyball. It is known that the ratio of basketball, football and volleyball is 5: 4: 3. How many balls are there?
Chicken and rabbit live in the same cage, with 25 heads and 80 legs. How many chickens and rabbits are there?
⑤ Grade six students signed up for a math interest group, and the number of participants was 13 of the total number of grade six students. Later, 20 students took part. At this time, the ratio of students who participate and students who do not participate is 3: 4. How many people are there in Grade One and Grade Six?
The sixth grade elementary school mathematics final exam examination questions two
First, fill in the blanks. (12)
1. 12 is equivalent to the train speed, in units? 1? Yes ().
2. Ton = () kg15min = ()
3. A circle has a diameter of 4cm, a circumference of () and an area of ().
4. 16 is ()% of 20, ()% more than 16.
5.( )? 8 = ( )4 = 0.5 =( )% = ( ):( )。
60% of 6.80 is (); 80% of () is 60.
7. In 3: 2, if the former item is added with 6, the proportion should remain unchanged, and the latter item should be added with ().
8. Fill in ○? & gt、& lt、=?
2.2? ○2.2 8? 12○66.7% 1? ○ 1 ? 4.4○
9. During the New Year's Day, a sweater with the original price of 100 yuan in a shopping mall was only sold to 85 yuan. After calculation, this sweater is sold at the price of ().
10. Cut the largest circle from a square paper with a side length of 10 decimeter. The circumference of this circle is () decimeter and the area is () square decimeter.
1 1. Coins have 2 cents and 5 cents * * 18, a ***6 yuan dollar. There are () nickels.
12. Divide a circle with a diameter of 4 cm into several equal parts, then cut it open and put it together as shown on the right. The perimeter of the combined figure is () cm longer than the original circle.
Second, judge. (5 points)
1. The ratio of boys to girls in one class is 7: 8, and boys account for the whole class. ( )
The circumference of a circle with a radius of 2 cm is equal to its area. ( )
3.A is more than B 15m, which means B is less than A 15m ... ()
4. A batch of trial products, 120 pieces are qualified, 30 pieces are unqualified, and the qualified rate is 80% ()
The ratio of circumference to diameter of all circles is equal. ( )
Third, choose the serial number of the correct answer and fill it in brackets. (5 points)
1. A number is 18, B number is 18, and A number is () B number.
A is greater than b and less than c, equal to
2. Add hundreds of semicolons after the number A (A is not equal to 0), and the number will be ().
A, expand 100 times b, reduce 100 times c, unchanged.
3. Mr. Wang has deposited 3,000 yuan in the bank with a fixed term of 2 years and an annual interest rate of 2.25%, and will receive the principal and after-tax interest of * * * () yuan at maturity.
a、3000 B、3 108 C、 108
4. The figure with the least symmetry axis is ().
A, circle b, rectangle c, square d equilateral triangle
5. There are two circles. The radius of the big circle is 5cm, and the radius of the small circle is 4cm. The area of the small circle is the area of the big circle ().
A, b, c, time
Fourth, calculation. (34 points)
1. Write the number directly. (16)
34 ? 8 = 23 ? 2 = 9 10 ? 35 = 16 ? 38 =
? = 1? = ? 60%= ? 15=
- = 6.8? 10%= 4.5+ = ? =
2. Calculate as simply as possible. (12 points) X k B 1. chief operating officer
49 ? 15 ? 45 4- -
? 58+42? 8 36? (23 + 16 - 34 )
3. Solve the equation. (6 points)
x？ = X- X=3
Fifth, practical operation. (10)
1. Draw a circle, mark the length of the radius, and then calculate its perimeter and area.
Sixth, solve the problem. (34 points)
1. Answer as required. (6 points)
(1) Qianjin Township plans to dig a 300-meter-long canal, which has been dug. How many meters are left to dig? (Draw a line graph first, and then list the formulas without calculation)
(2) Grade six students 160, 120 meet the national physical training standards (children's group). What is the success rate of sixth grade students?
Quantity relationship: _ _ _ _ _ _ _ _ _ _ _ _ Quantity relationship: _ _ _ _ _ _ Quantity relationship: _ _ _ _ _ _ _ Quantity relationship
List the comprehensive formulas without calculation: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3. Answer the following questions. (28 points)
(1) The total output of vegetables in a certain township last year was 7.2 million Jin, accounting for 62.5% of the total output of vegetables this year. What is the total output of green vegetables this year?
(2) There are 450 students in Dongfeng Primary School, and the number of girls is the number of boys. How many boys and girls are there in this school?
(3) A car factory produced 36,400 cars in the first half of the year, 3,900 more than originally planned. What is the percentage of overproduction?
(4) Circumference of annular flower bed in Xicheng Greening Square18.84m.. What is the area of the flower bed?
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