Name: Class: Score:

First, fill in the blanks. (20 points)

(1)3.7 square meters = () square decimeter 20 13 square centimeter = () square decimeter.

0.56 hectares = () square meters 5000 hectares = () square kilometers.

0.25m2 = () cm2

(2)3.56×5.6=0.356×( )=( )×0.056

2200÷40=2.2÷( )= ( )4

(3) A pen is X yuan and a pencil is Y yuan. X-y stands for () 7y stands for: ().

(4) If the side length of a square is one centimeter, its area is () square centimeters; Its circumference is () cm.

(5) 2.027527527 ... Write () in a simple way, and keep about two decimal places ().

(6) There are 49 students in Class 5 (2), including 29 boys. If you choose one, the possibility of choosing a girl is ().

(7) If Wang Ming's ID number is 440402200 105238256, then Wang Ming's birthday is () and he is a child (male or female). (hit).

(8) Xiaoli scored 78 points, 95 points, 88 points, 98 points, 100 points, 67 points, 92 points, 96 points, 100 points and 77 points respectively in the unit examination last semester. The median of this set of data is ().

(9) Longhe lives in Xiaolong Garden 02- 1 102, which means two buildings,1/building 2, and Xiao Teng lives in1building 5, room 3. The number code can be written as ().

(10) Choose one card from the six cards marked 1, 2, 3, 4, 5 and 6.

1 The possibility of drawing "1" is ();

The possibility that 2 draws a number greater than 4 is ();

The possibility that 3 is drawn to a number less than 3 is ();

4 Xiaolong and Xiaohei play a game together: Xiaolong wins below 4 and Xiaohei wins above 4. Is this game fair? ( )

If you add another number (), the game will be fair.

Second, the judgment question. (5 points)

(1) In the same set of data, the average must be less than the median. ( )

(2)X=5 is the sister of equation 2X-2=8. ( )

(3) The winning rate is scratch music, which means that if you buy 100 tickets, you will win a prize. ( )

(4)2 1.2 1.6. If the decimal points of the two factors are removed, the product will be expanded by 100 times. ( )

(5) The area of a triangle is half that of a parallelogram. ( )

(6) The advantage of median is that it is not affected by too large or too small data. ( )

(7) In a math exam, the probability that Xiao Ming gets full marks is 1. () (8) Two parallelograms with equal areas have equal bases and equal heights. () (9)2×a can be abbreviated as a. () (10) 3.555 is a cyclic decimal. ( )

Third, multiple choice questions. (10) (1) 1. The sum of x and y divided by 4 columns is ().

a . x+y÷4 b .(x+y)÷4 c . 4 ÷( x+y)d . 4÷x+y

(2) .0.47 ÷ 0.4, quotient 1. 1, and the remainder is ().

A.3 B.0.3 C.0.03 D.0.003

(3) Cycle node 0.83 13 13 1 ... is ().

a . 83 1 b . 3 1 c . 13d . 3 13

(4) .x is three times that of 9, and the listed equation is incorrect ().

a . 3x-9 = 4 b . 3x = 9+3 c . 3x+4 = 9d . 3x-4 = 9

(5). The simplest way to calculate 28× 0.25 is ().

A.28×0.5×0.5 B.28×0.2+28×0.05

C.7×(4×0.25) D.20×0.25+8×0.25

Fourth, the calculation problem. (28 points)

(1), the number written directly. (8 points)

1.45×0.2= 0.88÷0.44= 2- 1.2= 12.5×0.8=

1-0.2÷0.2= 0×6.3÷9= 4.2÷7×7= 4.5×2÷4.5×2=

(2), with vertical calculation. (6 points)

3.7× 2.06 (two decimal places reserved) 0.756 ÷ 0.36 (to be determined)

(3) Solve the equation. (8 points)

4.2x-2.7×4=6 0。 8x+x=5.4

5.3+3 times = 6.8 6.3-2 times +4.5=7.4

(4), how to calculate is relatively simple. (6 points)

6.7 1×0.52+4.8×0.67 1 3.8+2.49+7.5 1+4.2

102×4.5 8.3-2.63+2.73× 1.5

Fifth, the operation problem.

Draw a parallelogram and a triangle with an area of 8 square centimeters in the picture below. (The side length of each square is 1cm)

Sixth, solve the problem.

65,438+0.06 In 2006, Shaoxing County subsidized poor disabled families 1 10,000 households, with subsidy funds 1 10,000 yuan, 2.5 times that of 2003, and the number of subsidized families was about10.8 times that of 2003.

(1) What is the average subsidy fund for poor disabled families in Shaoxing County in 2006?

(2) What is the subsidy in 2003?

(3) How many poor families with disabilities received subsidies in 2003? (Numbers are reserved as integers)

2. The speed of passenger plane is 870km/h, which is 45km more than that of 1 1 times. What is the speed of the car? (Equation solving)

3. parallelogram plot, with a base length of 65,438+0,200m and a height of about 600m. If you plant wheat in this field, you can get an average of 0.56 kg of wheat per square meter. How many kilograms of wheat can you harvest in this land? How many tons?

A batch of fruits was sent to the fruit market. The delivered apples are 9 10 kg more than pears, and the weight of apples is 1.7 times that of pears. How many kilograms are apples and pears? (Equation solving)

This toy factory can make 5 dolls with 2.6 meters of cloth. After improving the process, each doll can save 0.02m cloth.

(1) How many meters of cloth does each doll need now?

(2) How many dolls can be made from the cloth that originally produced 800 dolls?

6. Li Nainai's family has a field (as shown below), which can produce 12.5 kg of vegetables per square meter on average. If the shaded part and blank part are corn field and wax gourd field respectively, how many Jin of corn and wax gourd can be harvested in this field respectively?