1, two digits times two digits, and the product may be () digits or () digits.

The quotient of 2.595÷5 is () digits; To make the quotient of □37÷2 a two-digit number, you can fill in () in □.

3. China will hold the Olympic Games in (), that is, () (fill in the blanks or leap year).

4. Xiaogang's birthday is the penultimate day of the third quarter, and Xiaogang's birthday is () month ().

5, 1949, 10, 1, People's Republic of China (PRC) was founded this year, 10, 1 is the anniversary of the founding of the People's Republic of China.

6. Two squares of 1 square decimeter can be used to form a rectangle. The circumference of a rectangle is () decimeter and the area is () square decimeter.

7. Fill in the appropriate company name in ().

(1) A truck can carry 5 (). (2) The Yangtze River is about 6300 () long.

(3) The area of the cover of the math book is about 300 (). (4) An egg weighs about 60 ().

8. There are 5 hens and 2 cocks at the scene, and cocks account for as much as () () of this group of chickens; Later, a hen ran away. At this time, hens accounted for () () of this group of chickens.

9,7 Angle = () () Yuan =0. () Yuan, 3 decimeters = () () meters =0. () meters.

10, there are four numbers, and their average is 5. Change one of the numbers 1 to 9, and their average value becomes ().

Second, choose carefully. (*** 10 point)

1, in the following letters, () is not an axisymmetric figure.

① A ② M ③ S

2, the following movement is translated ()

① Push open the door of the classroom ② Tighten the screws with a wrench ③ The car is driving on a straight road.

There are 35 apples, and a little monkey took three-sevenths of them, and there are still a few. The correct formula is ().

① 35÷3×7 ② 35÷7 ③ 35÷7×3

4. Make an object on the right with four cubes of the same size, and the figure is seen from ().

① Front ② Side ③ or above.

There are an average of 40 students in each of the three classes in Grade Three. There are 38 students in Class One, 40 students in Class Two and () students in Class Three.

① 38 ② 40 ③ 42

Third, Bao Gong is online. (***8 points)

1, multiply 0 by any number to get 0, and divide 0 by any number to get 0. ( )

There are as many days in the third quarter as in the fourth quarter every year. ( )

The perimeters of two squares are equal, and their areas must be equal. ( )

4. Decimals are numbers less than 1, such as 0.5, 0.8, etc. ( )

Fourth, careful calculation: (***24 points)

1, calculate the following questions orally. (***4 points)

+ = 92÷2= 25×80= - =

25×0= 5.6+2.3= 720÷3= 90- 15=

2. Write the following questions. (Check with △, 4×3'+2×4')

45×67= △89×64= 60×82=

522÷4= 4 13÷7= △504÷5=

Verb (abbreviation for verb) Operating platform (4 feet +4 feet)

1. Draw a rectangle and a square with an area of 16 cm2 on the grid paper below. (***4 points)

2. Painting and painting. (***4 points)

(1) Translate the ship map to the left by 6 squares.

(2) Draw the other half of the graph to make it an axisymmetric graph.

Sixth, solve the problem. (***30 points)

Students from Class 1 and Class 12 went for a spring outing, with an average of 45 students in each class. A * * * has 10 buses. How many people sit on each bus on average?

There are 45 students swimming in the swimming pool, including boys. How many male students are there? How many girls are there?

A rope is 26.2 meters long. It took 7.6 meters for the first time and 3.8 meters for the second time. How many meters are left?

4, a pair of leather shoes 105 yuan, the price of a dress is twice that of shoes. How much does it cost mom to buy a pair of shoes and a dress?

5. The statistics of a small group of students in Class 3 (2) are as follows: 142cm, 139cm, 152cm, 156cm, 147cm, 156544.

(1) What is the average height of this group of students? Which range should it be?

(2) What is the average height of this group of students?

Congratulations, you have completed the above challenges! Don't forget to check it!

Star of Wisdom (***20 points)

1. Observe the three questions on the left of the following set of formulas, and then fill in the numbers in brackets on the right. (6 points)

2 1×9= 189 5432 1×9=( )

32 1×9=29 65432 1×9=( ) 432 1×9=389

765432 1×9=( )

2. Make 36 small squares of 1 cm2 into different rectangles or squares. What is the perimeter and area of each figure? Complete the form. (8 points)

Chart Length (cm) Width (cm) Perimeter (cm) Area (cm 2)

Observe the above table. What did you find?

3. The picture below shows a big square, and the two shaded parts inside are small squares. It is known that the sum of the perimeters of two small squares is 36 decimeters. What is the area of this big square? (6 points)