Class name score
First, seriously think about filling in. (3+2+3+2+2+3 = 15, * * * 15)
1. Fill in ">", "
396×0.62○396 453÷ 1.2○453 7.8÷0. 1○7.8× 10
2.7○2.7÷0.8 3.5×7.28○7.28 6.5÷3.2○6.5÷2.3
2.( 1) The temperature in the morning is m degrees Celsius, and it is 6 degrees Celsius higher at noon than in the morning. The temperature at noon is centigrade.
(2) A book has A pages, and Xiaolan reads 6 pages every day in B days. A-6b stands for _ _ _ _ _ _ _ _ _ _ _.
3. Eight girls from Class Five (1) scored the following results in the long jump:
Last name: Li Zhenlan, Wang Zhangqian, Wu Min, Zhenxiu, Huang Lihua and Liu Xiu.
Grade/m2 48 2.60 2.76 2.44 3.22 2.59 2.53 2.66
The average value of this set of data is (), and the median value is (). I think it is more appropriate to use () to represent the general level of this set of data.
4. A person's ID number is: 4201241956122 50818. This person's date of birth is (), and his gender is ().
5.6.64÷3.3 The decimal point of business cycle is (), and one digit after the decimal point is ().
6. Below is a set of cubes. Please point out the corresponding patterns seen from different directions:
Second, who is who must be distinguished. (For example, draw "√" on the right and "X" wrongly, * * * 10)
The operation law of 1. integer multiplication can also be applied to fractional multiplication. ( )
2. The formula of rectangle perimeter is expressed by letters: C=(a+b)4. ( )
3. All equations are equations, and all equations must be equations ().
4. The median of a set of data may be equal to the average. ( )
The product of two decimal places must be greater than one of them. ( )
Third, choose one carefully. (Fill in the serial number of the correct answer in brackets, *** 10)
The formula that 1. equals to 42÷3 1 is ().
①42÷3 1 ②42÷3. 1 ③0.42÷3. 1 ④4.2÷3. 1
2.7.2 1÷ 1.8=4……( )。
①1② 0.1③ 0.01④ 0.0013. Two triangles () form a parallelogram.
① Impossible ② Possibility ③ Definiteness ④ I don't know.
There are beads of the same size and different colors in one pocket, including 2 red beads and 6 white beads. The possibility of touching the red beads is ().
① 1/2 ②2/6 ③2/8 ④ 1/8
5. Compared with 2a, A2 is ().
① a2 > 2a2a2a2 < 2a3a2 = 2a4a2 may be greater than 2a, less than 2a, or equal to 2a.
Fourth, practice magical calculations. (35 points)
1. 1. (5 points)
8.5+ 1.3= 15.7-0.4= 3.8×2= 2.6×0.2=
6.9÷3= 1÷0.4= 42÷84= 4-0. 17=
0.8× 1.25= 7.3÷0.0 1=
2. Vertical calculation and checking calculation of columns. (8 points)
( 1) 18.5×0.24= (2) 5 1.3÷0.27=
3. Calculation (simple calculation is required) (12 points)
( 1)7.4-0. 15×2.8 (2) 0.008+0.92×5- 1.28
(3)7.8÷( 1.3×4) (4) 7.2×0.9+0.0 1×7.2
4. Solve the equation. (6 points)
( 1) 13ⅹ+65 = 169(2)0.5x÷7 = 0.4
5. Calculate the area below: (4 points)
Fifth, flexible use of solutions. (***30 points)
1. Last month, the number of visitors to the Science and Technology Museum reached 137800, of which the number of children was 1.6 times that of adults. How many children and adults visited the Science and Technology Museum last month? (column equation solution)
2. Miss Wang wants to use 100 yuan to buy some stationery as prizes for the grade sports meeting. He spent 65.4 yuan to buy six photo albums first, and he is going to use the remaining money to buy several pens, each 2.5 yuan. How many pens can Miss Wang buy?
The distance between a and b is 453 kilometers. Two cars, A and B, leave two places at the same time and drive in opposite directions. They met three hours later. It is known that car A is faster than car B per hour 1 km. How many kilometers do A and B travel per hour? (Solve it in your own way)
4. Triangle orchard with an area of 720㎡. As shown in the figure below. Farmer Zhang wants to install a water pipe as shown by the dotted line in the picture. Please use the mathematical knowledge learned in this issue to calculate the length of this water pipe.
5. In pairs, one person randomly selects two cards from cards ①, ②, ③ and ④. If their sum is singular, I will win the prize; If their sum is even, the opponent wins. Is this game fair? Can you change a card to make the game fairer? agree
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2012-5-2410: 21enthusiastic users
2.7.2 1÷ 1.8=4……( )。
①1② 0.1③ 0.01④ 0.0013. Two triangles () form a parallelogram.
(1) impossible; (2) Possibility; (3) determine; (4) I don't know whether to approve or not.
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Li Sanji
2009-20 10 school year second semester final comprehensive volume
Five-year mathematics
Name of school class
(1) I'll fill it out. Read it if you don't believe me (16).
(1)4.3 cubic decimeter = () cubic decimeter () cubic centimeter.
538 ml = () cm 3 20 sec = () min (1.5 min)
(2) The decimal unit is (), and it has () such decimal units, which is the smallest prime number after subtracting () such decimal units. (1.5 points)
(3) There are about 200 countries in the world, including more than 100 countries with water shortage, more than 40 countries with severe water shortage, and water shortage countries account for about the total number of countries in the world; Countries with severe water shortage account for about the total number of countries in the world; See this material, your suggestion is (). (3 points)
(4) Write all the simplest true fractions () with a denominator of 6, and write two false fractions () equal to 1.
(5)()⊙()= = () (decimal). (2 points)
(6) The largest two-digit number that can be divisible by 2, 3 and 5 at the same time is (), and the prime factor to decompose this number is (). ( 1)
(7) () and () are prime numbers, their greatest common divisor is (), and their least common multiple is (). (2 points)
(8) Put two cubes with side length of 1 decimeter into a cuboid. The surface area of this cuboid is () and the volume is (). (2 points)
(9) A number can be divisible by 12 and 18 at the same time, and the smallest number is (). ( 1)
(10) Cut a 3-meter-long square steel into three sections, increase the surface area by 80 square centimeters, and the original volume of the square steel is (). ( 1)
(2) A, B, C and D, I will choose. (Fill in the serial number of the correct answer in brackets, 5 points)
(1) Cut the 4m-long rope into 5 segments on average, each segment accounting for ().
a，m b，m c，d，
(2) The following fraction that cannot be converted into a finite fraction is ().
A, B, C, D,
(3) The product of the multiplication of two prime numbers must be ().
A, prime number b, odd number c, composite number d, even number
(4) The capacity of a can of Coca-Cola is ().
a，355L B，0.3m 3 C，355ml D，355ml DM 3。
(5) If the length, width and height of a cuboid expand by three times, its volume will expand ().
a、3 B、9 C、6 D、27
(3) Strict judges. (Mark "√" for the right and "×" for the wrong, 5 points)
(1) There is only one score greater than and less than. ( )
(2) A pile of sand weighs 5 tons, and there are still a few tons left after being transported away. ( )
(3) According to the number of divisors, natural numbers can be divided into prime numbers and composite numbers. ( )
(4) Cubes with a side length of 6 decimeters have the same surface area and volume. ( )
(5) ι 3 represents the product of three ι. ( )
(four) strive to become a psychic (30 points)
1, solve the equation. (12)
① X + = ② -2 X =
③ 2.7X- 1.6 = 38.9 ④ X÷4.5 = 20
2. Calculation of the following problems can be simplified. (18)
( 1) +( - ) (2)2- - (3) - +
(4)68- 7.5 + 32-2.5 (5) -( - )
3, only formulas or equations, no calculation. (4 points)
(1) Subtract the sum, what is the difference?
(2) 2.5 times a number is 2.8 less than 12.72. What's this number?
(5), the actual operation (12)
1, measure. Measure the length of the following three line segments. If these three line segments are the length, width and height of a cuboid, what is the surface area and volume of this cuboid? (5 points)
Surface area: volume:
2. Draw a picture (7 points).
(1) The figure below is a cuboid with a length of 4 cm and a width of 1 cm. Please draw it into four cubes and draw it on the picture. (3 points)
(2) Draw the height of this parallelogram first, then measure how many centimeters its base and height are (take whole centimeters), and then calculate its area.
A = () cm h = () cm
S = () square centimeter
(6) Apply knowledge to answer the following questions. (***32 points)
1. The teaching building has 24 classrooms and 6 teachers' offices of the same size, with a total area of 1920 square meters. The area of each teacher's office is 32 square meters. What is the area of each classroom? (Write the quantitative relationship first, then list the comprehensive formula, without calculation)
Quantitative relationship: () ○ () = ()
Comprehensive formula:
2. There are 30 people in Class Five (1) who participate in the reading group, which is 6 people less than those who participate in the calligraphy group. How many students join the calligraphy group? (column equation solution)
The school sent a pile of sand. It takes tons to build roads, tons to build walls, and tons left. How many tons more sand is left than used?
A room is 6 meters long, 4 meters wide and 3 meters high. If all four walls of the room are covered with wallpaper, excluding 7 square meters of doors and windows, the wallpaper is per square meter 12.5 yuan. How much is the wallpaper of * *?
5. There are three steel wires with lengths of 12m, 18m and 30m respectively. Now, we must cut them into small pieces of the same length, but none of them are allowed to stay. What is the longest length of each piece? How many segments can a * * * be cut into?