1, fill in the appropriate units:

There are about 20 pure barrels in the classroom. The baby drinks about 5 () potion at a time.

2. Pour 1 l juice into a paper cup with a capacity of 200 ml, and one * * * can pour () cups.

The factor of 3 and 30 is (). There are () odd numbers in these factors, and the composite number is (). Where () is neither a prime number nor a composite number.

4. Fill in a number () in □, and 40□ is a multiple of 5 and 3.

Fill in a number () in □, and 32□ is a multiple of 2 and 5.

There are row A seats upstairs and row B seats downstairs, each with 22 seats. This theater has () seats; When a= 15 and b=35, this theater has a seat ().

6. The top angle of an isosceles triangle is 70, and one of the bottom angles is () degrees.

7. In 35× 4 = 140, () is a multiple of (), and () is a factor of ().

8. The World Cup group qualifiers in South Africa adopt round robin (one game for every two teams), with four teams in each group and one * * * (); If you want to exchange souvenirs, each team should prepare ().

9. For a three-digit number, the number in the hundredth digit is a composite number and an odd number, the number in the tenth digit is a prime number and an even number, and the number in the single digit is the smallest composite number. This three-digit number is ()

10, rectangular grassland, 35 meters long. If you reduce the length by 5 meters, the remaining shape will become a square. The original area of this grassland is () square meters.

1 1. From 8: 00 a.m.15 to 8:30 a.m., the minute hand on the clock face turned () degrees in the direction of ().

12. There are two different natural numbers. Their product is 48 and the difference is 8. These two numbers are () and () respectively.

Second, judge. (65438+ 0 points for each question, ***5 points)

1, triangles with the same area must have the same shape and ...................................... ().

2. To reflect the change of monthly precipitation, it is more appropriate to use the broken line statistical chart in .................................. ().

3. The sum of five consecutive natural numbers must be a multiple of 5 ............................ ().

4. The parallelograms are all equal in height. ……………………………………………( )

5、a ×a = 2a ……

Three. Choice (2 points for each question, *** 10)

1, the square has () axis of symmetry.

A, 2 B, 3 C, 4 D, countless

2. Form a triangle with the three line segments below ().

a，3cm，4cm，5cm，b，3cm，3cm，6cm

C, 2cm, 3cm, 5cm, D, 4cm, 2cm and 8cm.

3, the following problem (), the last step is multiplication.

a、45÷5+ 10×3 B、45÷(5+ 10)×3 C、45÷[(5+ 10)×3]

4. Among the following three groups of figures, the figures in group () are all composite numbers.

a、2、4、6 B、 15、5 1、9 1 C、20、29、30 D、24、7、6

5. One factor of a× b is multiplied by 10, and the other factor is also multiplied by 10, and the product is equal to ().

A, product multiplied by 100 B, product multiplied by 20 C, product multiplied by 10.

Fourth, calculation. (28)

1, directly write the results of the following questions (0.5 points for each question, ***4 points).

30×27= 360÷60= 4x-3x= 88×67×0=

150×40= 75÷25= 25×8= 1 1×8÷ 1 1×8=

2. Calculate the following questions vertically. (2 points for each question, ***6 points)

36×204= 150×66= 800÷70=

3. It can be calculated by a simple method. (3 points for each question, *** 18)

630÷(2 1- 12)× 16 96× 10 1-96 79× 15+ 15

486-58- 142 490-490÷70+59 47× 102

V. Operational problems (10 score)

1. Draw the bottom of the parallelogram below. 2. The figure below is an equilateral triangle.

On high places. (2 points) Please draw its symmetry axis. (2 points)

bottom

3. Rotate the figure A 90 counterclockwise around the O point to get the figure B (drawing), and then translate the figure B 3 squares to the left to get the figure C (drawing). (6 points)

A

O

Six, solve practical problems (25 points)

1, 3 trucks carrying 480 boxes of apples. According to this calculation, how many boxes can be transported by five trucks and one * * *? (5 points)

2. Hongshan Primary School organizes students to participate in the district sports meeting. The number of participants in the fourth grade is 12, which is 7 less than that in the fifth grade, and the number of participants in the sixth grade is 3 times that in the fourth and fifth grades. How many people participated in the sixth grade? (5 points)

3. For every football in 98 yuan and basketball in 76 yuan, can Miss Li spend 1000 yuan to buy four footballs and eight basketballs? (5 points)

4. For a rectangular lawn with a length of 9 meters, due to road construction, the lawn length is reduced by 3 meters, so the lawn area is reduced by 15 square meters. What is the area of this lawn now? (Draw the reduced parts in the picture and then answer) (5 points)

5. The capacity of a beverage bottle is 450ml, and each bottle is 8 yuan. Merchants buy two and get one free in order to promote sales.

Uncle Huang bought 24 bottles of drinks. * * * How many milliliters are there? (2 points)

(2) Uncle Huang bought 24 bottles of drinks. How much should he pay? (3 points)