2.88 1/0.43-3.5*0.24
13.5*0.68/8.5
43.6-7.6*4. 1
(86.9+667.6)/50.3
(73.5+80.5)/( 10+ 12)
(7.8* 15+5. 1* 10+6*5)/( 15+ 10+5)
12.53- 1.35*2-9.3
0.8*(4-3.75)/0. 1
6- 1.3*( 10-7.3)
Oral question100-63 =18+39 = 4/20 =
95/ 19= 245+27= 13*60= 96-58=
104+79= 0.3/ 1.5= 236+99= 3700+643=
0.48/ 120= 4*0.25= 1.5-0.06= 25* 19=
500-68= 10.6-5.2= 728/7= 2.8*0.4=
40*5.2= 3.5*200= 1.0 1*99= 1.6/3.2=
402* 15= 95/ 19= 17*40= 45*80=
53 1- 102= 0.8-0.37= 10-5.4=
Final examination paper of fifth grade mathematics
Class: Name: Score:
1. Fill in the blank: (1 ×20=20)
1, known as 47× 180=8460, then
4.7× 180=( ),4.7× 1.8=( ),0.47×0. 18=( )。
2, 3 tons = 70 kg = () kg = 480 square meters = () hectares.
9 square decimeter 2 square centimeter = ()
3. fill in ">", "
4.7〇4.7×0.99 6.3÷0.98〇6.3×0.98
2. 1÷ 1. 1〇2. 1 7.8÷0.0 1〇7.8× 100
4. Fill in the appropriate numbers in the brackets.
0.93÷0.3=( )÷3 1.6×0.25=( )÷4
The steelmaking plant plans to produce one ton of steel every year, and the actual monthly output is m tons higher than the plan.
The actual annual output of steel is () tons, and a÷ 12+ m means ().
6. After the decimal point of a number is moved one place to the left, it is 2.52 less than the original number. This number is ().
7. It takes 2.5 kilograms of soybeans to make 8 kilograms of tofu, so 1 kilogram of soybeans can make () kilograms of tofu.
It takes () kilograms of soybeans to make 1 kilogram of tofu.
8. The two right angles of a right triangle are 6 cm and 8 cm respectively, and the hypotenuse is 10 cm.
The area of this triangle is (), and the height on the hypotenuse is ().
9. Given that the sum of number A and number B is 175, and number A is 5 times smaller than number B, then number A is ().
2. True or false: (1 ×5=5)
1、25×4÷25×4= 1…………………………………………………( )。
2、0.25÷0.07=25÷7=3……4………………………………………( )。
3, a number multiplied by a(a is greater than 0), the product must be less than this number. …………………( )。
4.4. The solution of1× 4+2x = 20 is 1.8. ………………………………………( )。
The territory of our country is about 9.6 million square kilometers, or 9.6 hectares. …………… ( )。
Third, multiple-choice questions (1 ×4=4)
1, 0.5×A=0.6×B, and both a and b are not equal to 0, then the relationship between a and b is ().
A、A=B B、A \u B C、A \u B
2. If the approximate value of a two-digit decimal is 7.0, then the maximum value of this number is ().
a、6.99 B、6.94 C、7.04 D、7.09
Xiaoming is one year old and Xiaoying is four years younger than him. X years later, their age difference is () years.
a、x +4 B、a+4 C、x D、4
When the number a is divided by the number b, the quotient is 0.5. If the number A is enlarged by 100 times, the quotient is ().
A, 50 B, 100 C, 500 D, uncertain.
Four, calculation (36 points)
1, direct write number (0.5 points × 12=6 points)
3.6+6.4= 2+2.8= 9.2-6= 0.2×0.3= 0. 125×8=
0.95÷9.5= 0.2-0.09= 0.4×25= 0.8×0.2÷0.8×0.2=
1÷ 10÷ 10= 5.6÷0.0 1= 10.5-5=
2. Calculation (simple and convenient) (3 points× 6 =18 points)
7.36- 1.5+2.64- 1.5 0.25×3.2× 1.25 86.8+9. 1÷(2.3- 1.6)
9. 12×0.25-0.88÷4 0.85× 102 34.7÷0. 125÷80
3. Solve the equation (3 points× 2 = 6 points)
2x–9.8+8.7 = 10.98 6x-2.6×2 = 12.8
4, column calculation (3 points ×2=6 points)
What is the quotient of (1) and 62.4 minus 2 1.9 and minus 0.36?
(2) 6 times of a number is 0. 14 is less than 7.4 times of it. What's this number?
Verb (abbreviation of verb) Look at the picture and answer the question (5 points)
Sales Statistics of Xinhua Bookstore in the First Quarter of 2003
Unit: April 2003
3000
2 157
2000
1260 1250
1000
256
Literature and art books, science and technology books, reference books and story books.
1, and the length of 1 on the vertical axis indicates ().
2. Books with () and () are at least 20 times less than books sold.
What do you think of the picture? (2 points)
Six, the application problem (4 points x 6+6 points x1= 30 points)
1. The area of the triangle is 18.2 square centimeters, and its base length is 0.52 decimeter. How many centimeters is its height? (column equation solution)
2. Clothing factory produces school uniforms. In the past, each set of clothes used 2.2 meters of cloth, but now every 0.2 meters of cloth is used. At first, there were 800 sets of cloth for this kind of clothing. How many sets can we make now?
3. The highway between Party A and Party B is 2 10/0km long, with the speed of passenger cars being 46km/h and trucks being 36km/h.. After the bus departs from Party A 1 hour, the truck departs from Party B relatively. How many hours after the second car departs, the two cars meet?
The weight of a bag of rice is four times that of a bag of flour. I bought 10 bags of rice and 5 bags of flour in the school canteen, weighing1125kg. How much does a bag of rice and a bag of flour weigh?
5. When a train speeds up, its speed is180km/h, which is twice that of the original12km. How many kilometers does this train run per hour?
6. In the 10 health appraisal, the number of times each student got the red flag is shown in the following table. Please calculate the average number of times each student in this class gets the red flag.
Number of times to get the red flag
seven
eight
nine
10
number of people
nine
15
six
five
7. The distance between Party A and Party B is1.620km.. An airplane flies back and forth between Party A and Party B with the downwind when it flies out, with a speed of 865,438+00 kilometers per hour, and 540 kilometers per hour when it returns against the wind. How many kilometers does this plane fly back and forth every hour on average?
Responder: cola ice cream-assistant level 3 6-25 19:00
The final papers are from last semester and next semester.
First, the basic concepts. (0.38)
1.(0. 16)
(1) Beijing covers an area of about 16800 square kilometers, which is () hectares;
Tiananmen Square covers an area of about 400,000 square meters, which is () hectares.
(2) The sum of the upper and lower bottoms of the trapezoid is 3.6 decimeters, the height is 1.2 decimeters, and its area is () square decimeters.
(3) when, ().
(4) The two natural numbers adjacent to non-zero natural number A are () and () respectively.
(5) Xiao Ming walked four times along a 50-meter-long straight road:
frequency
first time
second time
the third time
the fourth time
step number
79
Seventy-eight
8 1
82
Xiao Ming's average stride length is () meters.
(6) As shown in the figure, if a 3-gram weight is added to the left of the balance, the balance will be balanced, so X weighs () grams.
(7) The two identical trapeziums in the picture below can be put together to form the () figure we have learned, and the area of the figure is () square centimeters.
(8) The drug instructions provide the following information:
Mom bought three bottles of this medicine. If you follow the instructions, you can take it for () days.
2. Judges. Correct painting "√" and wrong painting "×". (0.09)
One acute angle in a (1) right triangle is x degrees, and the other acute angle is (90-x) degrees. ( )
(2) As shown in the figure below, a candle can burn for 2 hours, and when there are two squares left, the candle has burned for 0.5 hours. ( )
3. Choose and put the serial number of the correct answer (0.09) in brackets.
(1) As shown below, two corners of a triangle are covered under a rectangular piece of paper. This triangle () is a right triangle.
① certain, ② possible, ③ impossible.
(2) There are two triangles A and B in the grid diagram below, so, ().
①A has a large area.
②B has a large area.
③A and B have the same area.
(3)X is five times that of 39.8 times 2.4, so find x. The listed equation is correct ().
①
②
③
4. Write the following formula simply. (0.04)
Two. Basic calculation. (0.32)
1. Write the number directly. (0.04)
2. Solve the equation. (0.08)
( 1)
(2)
3. Calculate the following questions, and simplify what can be simplified. (0.20)
( 1)
(2)
(3)
(4)
(5)
Third, solve the problem. (0.30)
1. The school bought five basketballs and eight footballs, which cost 405 yuan. The price of each football is 25 yuan. What's the price of each basketball? (0.06)
Mom brought 60 yuan money to go shopping with Xiaoming. They want to buy a box of apples and 3 kilograms of bananas. It is known that a box of apples, 45 yuan and a kilogram of bananas, 5.4 yuan. Did they bring enough money? Please provide a justification for the answer. (0.06)
3. There are 420 people participating in extracurricular activities in Chunguang Primary School, of which the number of boys is 1. 1 times that of girls. How many boys and girls are there in the activity? (solved by equation) (0.06)
4. Expand the parking lot. (Unit: meter)
There is a parking lot, the original shape is trapezoidal. In order to expand the parking area, it is expanded into a rectangular parking lot (as shown below). How many square meters has the area increased after the expansion? (0.06)
There is a parallelogram in the picture below. Please draw a triangle on the picture so that its area is equal to that of the parallelogram. (0.06)
Test answer
First, the basic concepts. (0.38)
1.(0. 16)
(1) Beijing covers an area of about 16800 square kilometers, which is (1680000) hectares;
Tiananmen Square covers an area of about 400,000 square meters, or 40 hectares.
(2) The sum of the upper and lower bottoms of the trapezoid is 3.6 decimeters, the height is 1.2 decimeters, and the area is (2. 16) square decimeters.
(3) When, (9).
(4) The two natural numbers adjacent to non-zero natural number A are () and () respectively.
(5) Xiao Ming walked four times along a 50-meter-long straight road:
frequency
first time
second time
the third time
the fourth time
step number
79
Seventy-eight
8 1
82
The average length of Xiaoming's step is 0.625 meters.
(6) As shown in the figure, if a weight of 3 grams is added to the left of the balance, the balance will be balanced, so X weighs (3.5) grams.
(7) Two identical trapezoids in the picture below can be put together to form the (parallelogram) figure we have learned, and the area of the figure is (36) square centimeters.
(The graphic answer is not unique)
(8) The drug instructions provide the following information:
Mother bought three bottles of this medicine. If she takes it according to the instructions, she can take it for (18) days.
2. Judges. Correct painting "√" and wrong painting "×". (0.09)
One acute angle in a (1) right triangle is x degrees, and the other acute angle is (90-x) degrees. (√)
(2) As shown in the figure below, a candle can burn for 2 hours, and when there are two squares left, the candle has burned for 0.5 hours. (×)
3. Choose and put the serial number of the correct answer (0.09) in brackets.
(1) As shown below, two corners of a triangle are covered under a rectangular piece of paper. This triangle (②) is a right triangle.
① certain, ② possible, ③ impossible.
(2) There are two triangles A and B in the grid diagram below, so (3).
①A has a large area.
②B has a large area.
③A and B have the same area.
(3)X is five times that of 39.8 times 2.4, so find x. The listed equation is correct (②).
①
②
③
4. Write the following formula simply. (0.04)
Two. Basic calculation. (0.32)
1. Write the number directly. (0.04)
2. Solve the equation. (0.08)
( 1)
Solution:
(2)
Solution:
3. Calculate the following questions, and simplify what can be simplified. (0.20)
( 1)
(2)
(3)
(4)
(5)
(The first four questions can be simplified)
Third, solve the problem. (0.30)
1. The school bought five basketballs and eight footballs, which cost 405 yuan. The price of each football is 25 yuan. What's the price of each basketball? (0.06)
(yuan)
(yuan)
A: The price of each basketball is 4 1 yuan.
Or:
Solution: Let each basketball cost X yuan.
A: Each basketball is 4 1 yuan.
Mom brought 60 yuan money to go shopping with Xiaoming. They want to buy a box of apples and 3 kilograms of bananas. It is known that a box of apples, 45 yuan and a kilogram of bananas, 5.4 yuan. Did they bring enough money? Please provide a justification for the answer. (0.06)
(yuan)
(yuan)
560
Through calculation, it shows that they don't have enough money on them.
3. There are 420 people participating in extracurricular activities in Chunguang Primary School, of which the number of boys is 1. 1 times that of girls. How many boys and girls are there in the activity? (solved by equation) (0.06)
Solution: For x girls, there are 1. 1x boys.
(person)
Or: (person)
There are 220 boys and 200 girls taking part in this activity.
4. Expand the parking lot. (Unit: meter)
There is a parking lot, the original shape is trapezoidal. In order to expand the parking area, it is expanded into a rectangular parking lot (as shown below). How many square meters has the area increased after the expansion? (0.06)
A: After the expansion, the area has increased by 256 square meters.
There is a parallelogram in the picture below. Please draw a triangle on the picture so that its area is equal to that of the parallelogram. (0.06)
The answer is not unique.
3×4= 12
(1) oral calculation.
(2) Fill in the blanks.
The decimal unit of (1) is (), and it has () such decimal units, plus such () decimal units, it is 2.
(2) A pile of coal was burned in15, and the average person who burned this pile of coal every day burned this pile of coal in 7 days.
(3) A bag of rice weighs 3 kilograms. Divide into five parts on average, each part is this bag of rice, and each part is 1kg.
(4) tons = () kilograms = () minutes
40 minutes = () 3 hours = () days
(5) The prime factor of decomposing 120 is: ()
(6) A rectangle is 8 cm long, 5 cm wide and 2 cm high. Its surface area is () square centimeters and its volume is () cubic centimeters.
(7) = =( )÷( )=
(8) There are 42 students in Class Five (1), including 24 boys and 24 girls.
(9) The sum of the sides of a cube is 96 cm, its surface area is () square cm, and its volume is () cubic cm.
(10) in descending order.
( )
(3) judgment. (Draw right √, draw wrong ×)
(1) Prime number cannot be divisible by 2. ( )
(2) Two adjacent natural numbers must be prime numbers. ( )
The denominator of (3) contains a prime factor of 3, which cannot be reduced to a finite fraction. ( )
(4) 1 meter is 4 meters long. ( )
(5) A cuboid has at least four rectangular faces. ( )
(6)3 and 10 have no common divisor. ( )
(7) Cubes and cubes have the same volume, and the surface area of cubes is smaller than that of cuboids. ( )
(4) find the unknown x.
( 1) (2)
(5) Calculate the following questions, and simplify what can be simplified.
( 1) (2)
(3) (4)
(5) (6)
(6) Answer the following application questions.
(1) A pile of coal, in which all the coal was burned in the first week, all the coal in the second week, and a fraction of all the coal in two weeks?
(2) Make an iron drum without a cover, and the bottom is a square with a side length of 25 cm and a height of 40 cm. How many square centimeters should I use at least? What is its volume?
(3) Team A, Team B and Team C will join hands to build a road. Team A built the whole road, team B built the whole road and team C built several parts of the whole road.
(4) A cubic iron box with a length of 10 cm, which is filled with water. Pour water into a rectangular container with a length of 25 cm and a width of 10 cm. What is the height of water?
[Thinking]
If the height of a cuboid is reduced by 2cm and becomes a cube, the surface area will be reduced by 48cm2. What is the volume of this cube?
Test answer
(1) oral calculation.
A little.
(2) Fill in the blanks.
The decimal unit of (1) is (), and it has (12) such decimal units, plus these (2) decimal units, it is 2.
(2) A pile of coal was burned in15, and the average person who burned this pile of coal every day burned this pile of coal in 7 days.
(3) A bag of rice weighs 3 kilograms. Divide into five parts on average, each part is this bag of rice, and each part is 1kg.
(4) Tons = (250) Kg hours = (25) minutes.
40 minutes = () 3 hours = () days
(5) The prime factor of decomposition 120 is: (120 = 2× 2× 3× 2× 5)
(6) A rectangle is 8 cm long, 5 cm wide and 2 cm high. Its surface area is (132) square centimeter and its volume is (80) cubic centimeter.
(7) = =(3)÷(8)=
(8) There are 42 students in Class Five (1), including 24 boys and 24 girls.
(9) The sum of the sides of a cube is 96 cm, with a surface area of (384) cm 2 and a volume of (5 12) cm 3.
(10) in descending order.
( )
(3) judgment. (Draw right √, draw wrong ×)
(1) Prime number cannot be divisible by 2. (×)
(2) Two adjacent natural numbers must be prime numbers. (√)
The denominator of (3) contains a prime factor of 3, which cannot be reduced to a finite fraction. (×)
(4) 1 meter is 4 meters long. (√)
(5) A cuboid has at least four rectangular faces. (√)
(6)3 and 10 have no common divisor. (×)
(7) Cubes and cubes have the same volume, and the surface area of cubes is smaller than that of cuboids. (√)
(4) find the unknown x.
( 1)
Solution:
(2)
Solution:
(5) Calculate the following questions, and simplify what can be simplified.
( 1)
Solution: Original formula
(2)
Solution: Original formula
(3)
Solution: Original formula
(4)
Solution: Original formula
(5)
Solution: Original formula
(6)
Solution: Original formula
(6) Answer the following application questions.
(1) A pile of coal, in which all the coal was burned in the first week, all the coal in the second week, and a fraction of all the coal in two weeks?
Answer: It burned all the coal in two weeks.
(2) Make an iron drum without a cover, and the bottom is a square with a side length of 25 cm and a height of 40 cm. How many square centimeters should I use at least? What is its volume?
25×40×4+25×25
=4000+625
= 4625 square centimeters
25× 25× 40 = 25,000 (cubic centimeter)
A: At least 4,625 square centimeters of iron sheet should be used; Its volume is 25000 cubic centimeters.
(3) Team A, Team B and Team C will join hands to build a road. Team A built the whole road, team B built the whole road and team C built several parts of the whole road.
A: Team C has repaired the whole road.
(4) A cubic iron box with a length of 10 cm, which is filled with water. Pour water into a rectangular container with a length of 25 cm and a width of 10 cm. What is the height of water?
10× 10× 10÷(25× 10)
= 1000÷250
= 4 cm
A: The height of water is 4 cm.
[Thinking]
If the height of a cuboid is reduced by 2cm and becomes a cube, the surface area will be reduced by 48cm2. What is the volume of this cube?
48 ÷ 4 ÷ 2 = 6 cm
63 = 2 16 (cubic centimeter)
The volume of this cube is 2 16 cubic centimeter.