1. Fill in the appropriate decimal places in the brackets.

5 yuan 8 jiao = () yuan 1 meter 5 decimeter 3 cm = () meter.

2. There is a number, and both decimal and percentile are 3, and both decimal and decimal are 0. This number is written as () and pronounced as ().

3, explore the law:

4,7, 10, 13,( )。

864,855,837,8 10,( )。

4,5 □ 6 ÷ 2, so that the middle of the quotient is 0, and the smallest () or () is filled in □.

5, 6 square meters = () square decimeter 8000 square centimeters = () square decimeter.

8m = () cm 60 decimeter = () m 0.30m = () decimeter

6. Fill in the appropriate units in the brackets.

(1) The area of the blackboard is about 4() (2) The small red is 145 ().

(3) The cover area of the stamp is 6() (4) The height of the stamp is about 10 ().

7. A square with a side length of 6 meters has a circumference of () meters and an area of () square meters.

8. Make six squares with a side length of 1 cm into rectangles with an area of () square centimeters and a perimeter of () centimeters or () centimeters.

9. Fill in ""or "=" in ○.

0.32 ○ 1.23 0.04 ○ 0.4

5.7+3.4 ○ 9.9-0.8 2.6 ○ 2.55

10, please arrange the following decimals from small to large.

0.96 0.69 1.56 0.06 0.78

Second, distinguish between eyes and eyes. (2 points for each question, *** 10)

1. The side length of the square is tripled, the perimeter is tripled and the area is multiplied by nine times. ( )

2. A square with a side length of 4 meters has the same circumference and area. ( )

Multiply 3, 0 and any number to get 0. ()

4. Figures with equal perimeters have equal areas. ( )

5. The result of multiplying two digits by one digit is 89 1. ( )

Third, choose one. (Fill in the serial number of the correct answer in brackets, 2 points for each question, *** 12 points)

1, a schoolbag 28 yuan, buy a schoolbag like 10, 300 yuan money ().

A, is it enough b, not enough c, not sure

2. Put two squares with a side length of 3 cm into a rectangle, and the circumference of this rectangle is ().

A.18cm B.24 C.36

How many times is 3.5 15 5? The correct formula is ().

A.5 15-5 b . 5 15÷5 c . 5 15×5 1

4. Which of the following figures is not axisymmetric? ( )

B.C.

5. The area of a square is 64 square decimeters, and the side length must be ().

A, 8 square decimeter b, 8 decimeter c, 16 decimeter

6. Comparing the following two figures, the correct statement is ().

A.a and b are equal in area and circumference.

B.A and B have the same area, but A has a longer circumference.

C.a and b have equal perimeters, but b has a larger area.

Fourth, do math. (***30 points)

1. Write directly. (0.5 point for each question, *** 10 point)

90÷3= 50×40= 360÷4= 22×40= 480÷6=

720÷9= 0÷9= 800÷2= 0×85= 7.5+5.9=

4.6-2.3= 5.3-3.9= 3.5+ 1.5= 4.2+0.8= 6.6-3.2 =

1-0.5 = 909÷9= 728÷7= 6.2+ 8= 203×4=

2. Calculate the following questions vertically. (2 points for each small question, ***8 points)

60×37= 27×93= 6 15÷3= 804÷4=

3. calculation. (3 points for each small question, *** 12 points)

785-648÷8 29×9÷3

(25+ 15)×34 376÷( 123- 1 19)

Fifth, the operation problem. (***8 points)

1. Draw the other half of Figures ① and ② respectively, and make them into axisymmetric figures. (4 points)

① ②

Each square in the figure below represents 1 cm2. Please draw two different rectangles on the diagram so that their areas are both 12 cm2. (4 points)

Sixth, solve the problem. (/kloc-0 to 5 questions, 4 points for each question, 5 points for 6 questions, and 25 points for * * *)

1 .3. 1 Class 50 people participated in the zoo, including teachers 12, adult tickets for each 20 yuan, and student tickets for each 15 yuan. How much is the ticket?

Master Wang wants to draw an advertising wall 5 meters long and 4 meters wide. Apart from a square neon lamp cover with a side length of 5 meters, how big is the area to be painted?

The railway between city A and city B is 960 kilometers long. A bus leaves from city A at 8 am and arrives at 2 pm. How many kilometers does this train run per hour?

Grandpa Wang has a sheepfold around the Western Wall.

(1) Calculate the area of this sheepfold.

(2) If a fence is built, how long should it be?

5. Smart height is 13.5 decimeter, rogue is 0.6 decimeter taller than smart and shorter than cute 1 decimeter. What is cutie's height?

6. Dad weighs 65 kg, mom weighs 5 1 kg, and Xiaoming is 20 kg lighter than mom. Please put forward a two-step math problem before you answer it.