The distance between two points representing numbers -5 and-1 4 on the1.number axis is.
2 .. The smallest positive integer is _ _ _ _ _; The rational number with the smallest absolute value is _ _ _ _ _; The number whose absolute value is equal to 3 is _ _ _ _ _ _; The number whose absolute value equals itself is _ _ _ _.
3.3. 14 is accurate, and 6.7× has significant numbers.
4. If a≠0 is known, the solution of equation 3ab-(a+b)x=(a-b)x about x is.
5. The solution set of inequality is. The solution set of is.
6. In equation 4x-3y=7, if the algebraic expression is.
7. It is known that the equations have countless solutions, then = _ _ _ _ _, = _ _ _ _ _;
8. As shown in the figure, c and d are arbitrary points on the line segment AB, m is the midpoint of AD, and n is the midpoint of CB. If AB =18cm and CD = 8cm, then = ..
9. The complementary angle of an angle is more than its complementary angle 1. This angle is.
10. Starting from three o'clock, the second time when the minute hand and the hour hand make 20 degrees is minutes.
1 1. In a cuboid, there are a pair of parallel edges; There are edge pairs perpendicular to the edges; An edge with a pair of edges and different surfaces. One side is perpendicular to the face;
Second, multiple-choice questions (2 points for each small question, *** 10)
1, the known sum is the solution of the equation y=kx+b, then the values of k and b are ().
(A)，b=-4(B)，b=4
(C)，b=4(D)，b=-4
Three. Problem solving (1 and 7 points for 2 questions, 8 points for 3 and 4 questions, and 30 points for * * *)
1. If the inequality 4x-3a >；; -1 and inequality 2 (x-1)+3 >; The solution set of 5 is the same, please determine the value of a.
2. Place a pair of triangular plates with angles of 30 and 45 as shown in the figure, and the vertices of 30 and 45 are coincident. OM bisects ∠AOC. When bisecting ∠DOC, draw a geometric figure and find out. Size ∠MON.
3. A student goes to the city by bike from school, first goes downhill at the speed of 12km/h, then crosses the flat road at the speed of 9km/h, and reaches the city in 55 minutes. When he returned, he crossed the flat road at a speed of 8km/h, then went uphill at a speed of 4km/h, and it took him several hours to get back to school. Find out how many kilometers it is from the school to the city.
4. China's postal department stipulates that: within the domestic surface mail100g (including100g), 0.80 yuan will be charged for every 20g, and the weight less than 20g will be calculated as 20g; If it exceeds 100g, the excess will be charged 2.00 yuan per 100g; if it is less than 100g, it will be calculated as 100g.
(1) How many stamps do I need to put on an ordinary domestic letter weighing 4 1 g?
(2) Someone sent a domestic ordinary letter with a stamp of 6.00 yuan. How heavy is this letter?
(3) Nine people took part in a math contest, each answer sheet weighed 14g, and each envelope weighed 5g. How to put these 9 answer sheets into two envelopes and send them?
Mathematics final exam paper 2 1. I am good at calculation. (* * * 28 points)
1, write directly. (16)
67-9= 83+8= 240-50= - =
1- = 250×4= 40×8= 900×7=
92-37= 23×6= 480+ 120= 47+30=
800-420= 40÷5= 63÷9= 72÷8=
2. Write the following questions. (12)
439+753= 20 1+236= 56+86 1=
950-868= 173×8= 283×9=
Second, think carefully and fill in carefully. (1 point per space, 30 points for * * *)
1 and 29 have at most () eights, and there are () left.
2. It takes about 5 () hours to do eye exercises.
3. Each bag of cement weighs about 50 ().
4. Use the three numbers 4, 0 and 8 to form two three-digit numbers respectively. To maximize the sum of these two numbers, these three digits are () and () respectively; In order to maximize the difference between these two numbers, these two numbers are () and ().
5. The shape has () sides and () angles on the opposite side.
6. The minute hand goes () minutes from the numbers 2 to 5.
7, 5 minutes = () seconds 120 minutes = () hours.
3 kilometers = () meters 4 tons = () kilograms.
8. What can I fill in ()?
()×8 & lt； 50 4×()& lt； 2 137 = " " & gt； ( )×5
()×5 & lt； 44 5×()& lt； 38
9. Please fill in the symbol >, & ltOr = in the box.
14 mm 2 cm 370 g 370 kg 6 km 5800 m
4 decimeters 39 cm 8 decimeters 100 cm 90 minutes 1 hour
I am a little judge, and I will judge right and wrong (tick "√" for the right and "×" for the wrong). (5 points)
1. Divide an apple into two pieces, and each piece belongs to it. ( )
2. April has 3 1 day. ( )
There are two zeros at the end of the product of 3.800×5. ( )
4. Millimeter and kilometer are both units of length. ( )
People may die every day in the world. ( )
Fourth, choose the golden eye. (5 points)
In 1, () ÷ 5 = () ... The maximum value can be filled in ().
A: 5 B: 6 C: 4
My sister has two coats and three pairs of trousers. My elder sister wears a * * * and () kinds of collocation.
A: 5 B: 6 C: 4
3. Comparison between 2kg of iron and 2kg of cotton ().
A: Iron weight B: Cotton weight C: Same weight.
4. Every four people in the tour group live in a room, 19 people live ().
A: 5 B: 6 C: 4
5. The stone lion () flies in the sky.
A: Maybe B: No way C: Of course.
Five, hands-on practice. (12)
1. Draw a square and a rectangle in the dotted diagram below. (4 points)
. . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . .
Fill it in and color it. (8 points)
(1) The colored part is this circle ().
(2) Draw four more squares, which is the circle ().
(1) The colored part is this rectangle ().
(2) This percentage is relatively large ().
Sixth, solve the problems in life. (4 points for each small question, * * * 20 points)
1, I bought 38 buttons, 5 buttons for each dress. How many clothes can I nail? How many buttons are left?
2. The rectangular flower bed is 5m long and 3m wide. What is the circumference of this flower bed?
It costs 25 yuan to rent a boat, and how much does it cost to rent eight such boats?
A cake is divided into 8 pieces on average. Mom and dad ate 3 pieces each, and Xiaoying ate 1 piece. How much did Dad and Xiaoying eat this cake?
5. The grocery store shipped 4 10/0kg of eggs, sold152kg in the morning and174kg in the afternoon. How many kilograms are left?
Mathematics final exam paper 3 1. Fill in the blanks. 20%
(1) The ratio between every two adjacent counting units is 10, which is called () counting method.
(2) In the integer bit sequence table, the fifth digit from the left of the unit is (), and the counting unit is (); The ninth place is (). The number "9" on this bit means ().
(3) Numbers consisting of three billion and five million and six thousand, written in (); Read (). This figure is rounded to "ten thousand places", which is about () ten thousand.
(4) The multiplication algorithms are (), () and ().
5] 80496 ÷ 387, divisor is generally regarded as () trial quotient, and the highest bit of quotient is (), so quotient is () digits.
[6] 635 square decimeter = () square meter () square decimeter.
5 square decimeter 2 square centimeter = () square centimeter
(7) Use 12 squares with a side length of 1cm to form a rectangle with the longest circumference, whose circumference is () cm, the rectangle with the shortest circumference is () cm, and the areas of both rectangles are () cm 2.
Second, the judgment question. 4%
(1) When a rectangle is 6 cm long and 3 cm wide, its perimeter and area are equal. ( )
(2) The areas of two rectangles with equal perimeters must also be equal. ( )
⑶ The calculation method of multiplication is based on: ① Multiplication commutative law; ② Correlation of multiplication and division. ( )
⑷ The multiplication table expressed by letters can be written as: a× (b+c) = a× b× c ()
Third, calculation.
(1) is calculated vertically. 8%
①7304+ 12698= ②78000÷375=
⑵ Calculate with recursive equation. 12%
①3400-4530÷ 14×3 ② 150× 108+ 12000÷48 ③640÷(58×28- 1304)
⑶ Calculate with a simple method. 16%
① 147+386+853 ②2485-(760+ 1485)
③ 198÷2×45+45 ④75× 128-28×75
(4) Find the unknown x and write the basis of the first step. 8%
①3200-X=485 ②4872÷X=203
5] Text questions. 8%
① 180 minus the quotient of 180 divided by 12, ② 130 multiplied by the sum of 64 and 138.
What is the difference? What is the product?
Fourth, the application problem. 24%
The train traveled 204 kilometers in 2 hours. At this speed, the railway from Guangzhou to Beijing is 2346 kilometers long. How many hours will it take?
The basic quantitative relationship is: () ○ () = ()
(2) It takes 8 hours to process 2,400 parts in a workshop, and 5,600 similar parts can be processed at the same time after technical transformation. How many parts can be processed per hour after technical transformation (two ways)?
(3) Xiaohong reads story books, reading 15 pages every day, and it takes 12 days to finish. If you read 20 pages a day, how many days can you finish it? How many pages should I read every day if I am required to finish reading in 6 days?
(4) There is a rectangular orchard, 80 meters long and 35 meters wide. What is the area of the whole orchard? If you want to put a fence around the orchard, what is the length of the fence?