Fill in the blanks

1, 3 tons 50 kg = () tons 3 hours 15 minutes = () hours

8000 square meters = () hectares 5.06 square meters = () square decimeter.

2, 7.252525 ... You can write () in simple notation, which is about one thousandth of ().

Xiaoming bought two pens, each for one yuan. The clerk gave him C yuan, and Xiao Ming gave the clerk () yuan.

4. Which of the following figures can be densely laid? Please tick "√" in "()" if you can close the store.

( ) ()( )( )

3.6÷ 1○3.6

360÷ 1.3○360 8. 1÷0. 1○8. 1

6. A pile of logs is trapezoidal in cross section, with 12 at the bottom and 4 at the top, * * * *

Ninth floor. There is () wood in this pile of wood.

7. Observe a cuboid medicine cabinet, and you can see at most its () side at a time.

There are five red balls and three white balls in the box. If you touch any ball, the possibility of touching the white ball is (), and the possibility of touching the red ball is ().

9. A classmate's ID number is 44190020001201336. This classmate was born on () of () year, and her gender is ().

10, the circumference of a square is 24dm, the side length is () and the area is ().

1 1. The sides of a right triangle are 6 cm and 8 cm respectively, and the length of the hypotenuse is 10 cm. The area of this right triangle is () square centimeters, and the height on the hypotenuse is () centimeters.

12, the following figure shows the score statistics of five students skipping rope for one minute:

Name Xiaojun Li Xiaoli Chen Na Wang Kedi

Achievement/Below 92 70 78 89 76

(1) The average value of this set of data is (). (2) The median of this set of data is ().

Second, the judgment question. (There are ***4 sub-questions in this big question, each sub-question is 1 point, ***4 points) Mark "√" in () for the right and "×" for the wrong.

The product of 1 and 23.5× 1.4 is two decimal places. ( )

2. Dividing a number (except 0) by 0.0 1 is equivalent to expanding this number to 100 times. ( )

3,4x+5x8 = 72, the solution of this equation is 28. ( )

4. Two triangles with the same area can definitely form a parallelogram. ( )

Third, multiple choice questions. (This big question is ***4 small questions, each small question is 1 point, and there are ***4 points.)

Please fill in the letters of the correct answer in the question ().

1, the same as 9 1.2÷0.57, is ().

a、9 12÷0.97 B、9. 12÷5.7 C、9 120÷57 D、0.9 12÷0.57

2. After a rectangle nailed with four pieces of wood is drawn into a parallelogram, the area is ().

A, constant b, decreasing c, increasing d, uncertainty

3, the three-dimensional graphics on the left, from the side is ().

A, B, C, D,

4. The area of three figures between parallel lines on the right ().

A, the same area; B, the parallelogram has the largest area.

C, the maximum area of trapezoid d, the maximum area of triangle.

Fourth, the calculation problem. (big topic ***3 small topic, 2 1 topic 4 points,

The 22nd item is 12, and the 23rd item is 18, ***34).

1, a number written directly.

2.3×5 = 0.3+0.0 1 = 7.2+ 1.6 = 4÷0.5 =

0.32× 100= 6.7-2.3 = 2.3÷0.0 1= 8.5-0.24=

2. Solve the equation.

①2.5x= 14 ②3x-4×6.5=7.6

③42x+25x = 134④ 13(x+5)= 169

3 discontinuous calculation, simplify what can be simplified, and write out the main calculation process.

①6.8×0.56+0.44×6.8 ②9.6× 10. 1 ③ 1 1.25÷0.9-0.3

④7.2÷0.25÷0.4 ⑤( 16+ 1.48÷3.7)÷0.82 ⑥4.8×99+4.8

Fifth, hands-on operation. (This big question is ***3 small questions, the 24th small question is 4 points, the 25th small question is 3 points, the 26th small question is 3 points, *** 10 points)

1, Xiao Qiang and Xiaoli play roulette. When the pointer stops in the shaded area, Xiao Qiang wins, and when the pointer stops in the white area, Xiao Li wins. Xiao Qiang is more likely to let himself win. If you were Xiao Qiang, how would you design the turntable? How to draw a fair game? Paint it now!

Make it more likely to win, so this is the fairest way to describe the game.

2. Draw the graphics seen from the top, front and left of the 3D graphics on the grid paper below.

Draw a parallelogram, a triangle and a trapezoid with an area equal to 6 square centimeters on the square below. (Each square represents 1 cm2)

Sixth, solve the problem. (This book is entitled ***7 small questions, with 4 points for the 27th and 28th small questions, 5 points for other small questions, and 28 points for * * *).

1. A garment factory needs 2.5 meters of fabric to make a men's coat and 1.8 meters of fabric to make a pair of men's trousers. How many sets of men's wear can be made with the existing 600-meter cloth?

2. Miss Li went to the store to buy balls, four footballs and four basketballs, and one * * * cost 403.2 yuan. Given each football 28 yuan, how much is each basketball? (column equation solution)

The first network of new curriculum standards

3. There is a parallelogram wheat field with a bottom of 275 meters and a height of 60 meters, and the wheat harvest 19.8 tons. How many hectares is this wheat field? How many tons of wheat are harvested on average per hectare?

4. The school held a calligraphy and painting competition. There are 75 winners in the fourth and fifth grades, among which the number of winners in the fifth grade is 1.5 times that of the fourth grade. How many students won prizes in Grade Four and Grade Five respectively? (column equation solution)

The picture below shows a wall. If the average brick used to build this wall is 160 per square meter, how many bricks will be used for a * * *?

6. There is a rectangular swimming pool with a length of 30m and a width of 15m in the middle of a trapezoidal grass with an upper bottom of 40m, a lower bottom of 70m and a height of 30m, as shown in the following figure. How many square meters is the area of this grassland?