Class name score
Fill in the blanks.
1. () All triangles are called equilateral triangles, also called () triangles. Its three internal angles are all (), that is, () degrees.
2. When only one group of opposite sides are parallel, the quadrilateral is () shape; When its two opposite sides are parallel, it is ()-shaped.
3. The base angle of an isosceles triangle is that its top angle is () degrees, and it is a triangle with () angles.
4. 10830 square decimeter = () square meter () square decimeter
85 square meters = () square centimeters
90 hectares = () square kilometers = () square meters.
5. The math final exam results of a class are as follows:
100 98 85 67 95 76 89 100 96 79 88 97 96 84 93 97 100 64 79 88 97 100 9 1 82 75 95 98 93 87 7 8 92 6 1 58 90 80 100 100 95 49 83 77 90
Fill in the following table according to the above data:
The score is below 100 90 ~ 99 80 ~ 89 70 ~ 79 60 ~ 69 59.
number of people
(1) There are () people who get 100, and there are () people who fail.
(2) More than 90 points are excellent, and () people get excellent.
6.( ) ( )
7. Fill in the appropriate letters or numbers in () according to the algorithm.
( )
( ) ( )( )
( )+( )
( )×( )+( )×( )
8. The sum of four and a half times, expressed by a formula containing letters, is ()
9. A bucket of water weighs kilograms, and a bucket weighs kilograms. Half of the water is used, leaving () kilograms of water.
10. The perimeter of a rectangle is and the length is, which means ().
Second, judge.
There must be two acute angles in an obtuse triangle. ( )
2. Countless heights can be made from a vertex of the parallelogram to the opposite side. ( )
3. Below, the area of triangle is equal to the area of parallelogram. ( )
4. The equation has no value, so there is no solution. ( )
5. When is, the value of is equal to the value of. ( )
Third, choose.
1. Draw a parallelogram into a rectangle with four sides of the same length and area ().
A and B are larger than the original, C is smaller than the original, and D is equal to the original, so they cannot be compared.
2. Draw a line segment in the trapezoid, which cannot be divided into ().
A, a trapezoid and a triangle B, two triangles
C, two trapezoid d, three triangles.
3. In the formula containing letters, it can be written as ().
A, B, C, D,
4. When,,, the value of is ().
a、5.4 B、5.6 C、5.8 D、5.9
The canteen transported 7.2 tons of coal for the first time, and m tons of coal for the second time, using n tons. There are () tons of coal in the canteen now.
A, B, C, D,
Fourth, calculation.
1., , ?
2. Calculate the length of AB in the drawing (unit: cm).
3. Calculate the area of the graph (unit: meter).
5. Solve the following equation.
1.
2.
3.
4.
6. List the equations and find their solutions.
1. If you subtract 5.6 from 3 times a number, the difference is equal to 1.6. What is the number?
2. A number multiplied by 2 times 4 times 8, the total is equal to 100. What is the number?
Seven, use equations to solve application problems.
1. There were 48 passengers on a bus, and someone got off at the station. There are 39 passengers in the car at this time. How many people went to the station?
2. The area of the triangle is 1.92cm2, the base is 2.4cm, and how many centimeters is the height of the triangle?
Xiaoming took some money to the stationery store. He bought five exercise books, each 1.5 yuan. Xiaoming stayed in 2.5 yuan. How much money did he take to the stationery store?
The students took part in the afforestation activities. The number of trees planted in grade six is three times less than that in grade four, with 40 trees missing, 290 trees planted in grade six, and how many trees were planted in grade four?
5. Two trains, A and B, travel in opposite directions from two places 5 13 kilometers apart at the same time. After 3.5 hours, the two trains are still 37 kilometers apart. Car A travels 55 kilometers per hour. How many kilometers does bus B travel per hour?
6. Buy four sets of desks and chairs ***480 yuan. As we all know, the price of each table is three times that of each chair. How much is each table and chair?
Reference answer
Fill in the blanks.
1. A triangle with equal (three sides) is called an equilateral triangle, also called a (regular) triangle. Its three internal angles are (acute angles), which is (60) degrees.
2. When only one group of opposite sides are parallel, the quadrilateral is (stepped); When its two opposite sides are parallel, it is a (parallel four sides) shape.
3. The base angle of an isosceles triangle is that its top angle is (90) degrees, and it is a (straight) triangle.
4. 10830 square decimeter =( 108) square meter (30) square decimeter
85 square meters =( 850000) square centimeters
90 hectares =( 0.9) square kilometers =( 900000) square meters.
5. The math final exam results of a class are as follows:
100 98 85 67 95 76 89 100 96 79 88 97 96 84 93 97 100 64 79 88 97 100 9 1 82 75 95 98 93 87 7 8 92 6 1 58 90 80 100 100 95 49 83 77 90
Fill in the following table according to the above data:
The score is below 100 90 ~ 99 80 ~ 89 70 ~ 79 60 ~ 69 59.
No.6 16 9 632
(1) There were (6) people who got 100, and there were (2) people who failed.
(2) More than 90 points are excellent, and there are (22) people who get excellent.
6.(6b ) ( t)
7. Fill in the appropriate letters or numbers in () according to the algorithm.
(noun)
(a ) ( a )( b)
(x )+( y)
(4.7 )×( s )+( 4.7 )×( t)
8. In the formula containing letters, the sum of four and a half times is (4x+y÷2).
9. A bucket of water weighs kilograms, and a bucket weighs kilograms. Half of the water is used, leaving () kilograms of water.
10. The perimeter of the rectangle is and the length is, indicating (the width of the rectangle).
Second, judge.
There must be two acute angles in an obtuse triangle. ( √ )
2. Countless heights can be made from a vertex of the parallelogram to the opposite side. ( × )
3. Below, the area of triangle is equal to the area of parallelogram. ( √ )
4. The equation has no value, so there is no solution. ( × )
5. When is, the value of is equal to the value of. ( √ )
Third, choose.
1. Draw a parallelogram into a rectangle, and the length and area (a) of the four sides are equal.
A and B are larger than the original, C is smaller than the original, and D is equal to the original, so they cannot be compared.
2. Draw a line segment in the trapezoid, which cannot be divided into (D).
A, a trapezoid and a triangle B, two triangles
C, two trapezoid d, three triangles.
3. In the formula containing letters, it can be written as (c).
A, B, C, D,
4. When,,, the value of is (b).
a、5.4 B、5.6 C、5.8 D、5.9
5. The canteen delivered 7.2 tons of coal for the first time and m tons of coal for the second time, which took n tons. There are (d) tons of coal in the canteen now.
A, B, C, D,
Fourth, calculation.
1., , ?
2. Calculate the length of AB in the drawing (unit: cm).
(cm)
3. Calculate the area of the graph (unit: meter).
(square meters)
5. Solve the following equation.
1.
2.
3.
4.
6. List the equations and find their solutions.
1. If you subtract 5.6 from 3 times a number, the difference is equal to 1.6. What is the number?
Solution: Let this number
2. A number multiplied by 2 times 4 times 8, the total is equal to 100. What is the number?
Solution: Let this number
Seven, use equations to solve application problems.
1. There were 48 passengers on a bus, and someone got off at the station. There are 39 passengers in the car at this time. How many people went to the station?
Solution: Set people to get off at the station.
2. The area of the triangle is 1.92cm2, the base is 2.4cm, and how many centimeters is the height of the triangle?
Solution: Let the height of triangle be cm.
Xiaoming took some money to the stationery store. He bought five exercise books, each 1.5 yuan. Xiaoming stayed in 2.5 yuan. How much money did he take to the stationery store?
Solution: Suppose he went to the stationery store and brought Yuan.
The students took part in the afforestation activities. The number of trees planted in grade six is three times less than that in grade four, with 40 trees missing, 290 trees planted in grade six, and how many trees were planted in grade four?
Solution: Suppose we planted a tree in the fourth grade.
5. Two trains, A and B, travel in opposite directions from two places 5 13 kilometers apart at the same time. After 3.5 hours, the two trains are still 37 kilometers apart. Car A travels 55 kilometers per hour. How many kilometers does bus B travel per hour?
Solution: Set car B to the number of kilometers per hour.
6. Buy four sets of desks and chairs ***480 yuan. As we all know, the price of each table is three times that of each chair. How much is each table and chair?
Solution: RMB is set for each chair and RMB is set for each table.
Every table 90 yuan, every chair 30 yuan.