I. True or false questions (4 points for each question, ***40 points)

1, a number without a negative sign in front of it is a positive number.

That's right. Wrong.

You can get a negative number by adding a negative sign before the number.

That's right. Wrong.

3.0.24 liters = 24 ml. That's right. Wrong.

4. It is known that the product of two factors is 2.25, one of which is 3 and the other is 6.75. That's right. Wrong.

The quotient of the number a divided by the number b is 5.4. If the number A is constant and the number B is multiplied by 10, the current quotient is 54. That's right. Wrong.

6. The length and width of a football field are 120m and 80m respectively, and the area is larger than 1 hectare. That's right. Wrong.

7. When a number is multiplied by a decimal, the product must be less than this number. That's right. Wrong.

8. The unit price of a pen is 15.6 yuan, which is three times the price of a ballpoint pen. Pens are more expensive than ballpoint pens 10.4 yuan. That's right. Wrong.

9. Two cars, A and B, set off from two places at the same time, moving in opposite directions, and met after 4.8 hours. Car A travels 46 kilometers per hour and car B travels 53 kilometers per hour. The distance between Party A and Party B is 47.52 kilometers. That's right. Wrong.

10. Animals used in the China lunar calendar, such as rats, cows, tigers, dragons, snakes, horses, sheep, monkeys, chickens, dogs and pigs, represent every year, and every 12 years is a round. If 1954 is the Year of the Horse, then 2053 is the Year of the Rooster. That's right. Wrong.

Second, single choice (5 points for each question, ***60 points)

1 1, a pile of steel pipes, top 12, bottom 23, each layer from top to bottom 1, * * piled up 12. How many steel pipes are there in these two piles? Correct expression

A.( 12+23)× 1 1÷2

B.( 12+23)× 12÷2

C.( 12+23)× 13÷2

A. BC

12. Use a rectangular red cloth with a length of 6 meters and a width of 45 decimeters to make two triangular red flags with right angles of 2 decimeters and 3 decimeters, respectively. At most, you can do ().

A. 450 BC, 900 BC and 90 BC.

13, a fifth-grade student from a primary school visited the art museum. The details are as follows:

Personnel: 182 students, 12 teachers and 42 parents.

Vehicle condition: Type A vehicles are limited to 20 people, 350 yuan/vehicle.

Type B car: limited to 50 people in 720 yuan/car.

Excuse me: Which of the following car rental schemes is the most economical? ( )

A. Rent five Type B cars

B. Rent four B-cars and two A-cars.

C. rent 3 b cars and 5 a cars.

D. rent two type b cars and seven type a cars.

A.B. C. D。

14, several of the following statements are correct ().

(1) Two trapezoids can certainly spell out a parallelogram.

② The more decimal places, the greater the decimal places.

③ Positive numbers are greater than negative numbers.

(4) The base of the triangle remains unchanged, and the height and area are tripled.

A. 1

A.B. C. D。

15, toy train, running on a straight track, if the forward movement is negative, the backward movement is positive. This train leaves from point A, first walk +3 meters, then walk -2 meters. At this time ().

The train is 5 meters ahead of point A.

B.the train is 5 meters behind point a.

C. the train is behind point a 1 m.

D. the train is in front of point a 1 m.

A.B. C. D。

16, draw a parallelogram movable frame into a rectangle, and compare the original parallelogram with the current rectangle ()

A. Constant perimeter and area

B. the perimeter has changed, but the area has not changed.

C. the perimeter is unchanged and the area has changed.

D. the perimeter has changed and the area has also changed.

A.B. C. D。

17, Xiaohua has several RMB from 5 yuan and 2 yuan. She wants to take out 39 yuan in several different ways. ( )

A.2 B.3 C.4 D.5

A.B. C. D。

18, the triangle has an area of 32 square centimeters, a base of 8 centimeters and a height of ().

8 cm long, 6 cm wide, 4 cm high and 2 cm wide.

A.B. C. D。

19, six students ran 60 meters, with the following results: Zhang Yang 9.32 seconds, Li Qiang 9.38 seconds, Faye Wong 9.40 seconds, Zhao Yong 9.27 seconds, Liu Xing 9.45 seconds and Sun Jun 9.09 seconds. The top three students are ().

A. Liu Xing, Wang Fei, Li Qiang

C. Sun Jun, Zhao Yong, Zhang Yang Sun Jun, Zhang Yang, Li Qiang

A.B. C. D。

20. The area of a triangular land is 0.5 hectares. It is known that its bottom is 200 meters and its height is several meters ().

a2b . 20 c . 50d . 5

A.B. C. D。

2 1. A primary school bought 6 tables and 8 chairs, which cost 2948.8 yuan. If you buy 4 tables and 4 chairs, you need 1805.2 yuan. Do you know how much each desk and chair costs? ( )

A. Table unit price: 330.8 yuan; Unit price of chair: 120.5 yuan.

B table unit price: 320.5 yuan; Unit price of chair: 125.8 yuan.

C Table unit price: 3 10.4 yuan; Unit price of chair: 128.5 yuan.

D table unit price: 305.2 yuan; Unit price of chair: 130.8 yuan.

A.B. C. D。

22. The economic and trade building in a city is 62.3 meters high, with one floor 4.5 meters high and other floors 3.4 meters high. How many floors does this economic and trade building have? ( )

16， 17， 18， 19

A.B. C. D。

The second test paper—

I. True or false questions (4 points for each question, ***40 points)

1, positive number is greater than negative number.

That's right. Wrong.

2. An object that can move left and right is assumed to be positive, so it moves 5 meters to the right and is recorded as +5 meters. ( )

That's right. Wrong.

When a number is multiplied by a decimal, the product must be less than this number. That's right. Wrong.

There are 38 kilograms of gasoline in the car tank, and each kilogram of gasoline can make the car travel 6.5 kilometers. Uncle Zhang will travel 220 kilometers to the orchard. He doesn't need to refuel halfway. That's right. Wrong.

The unit price of a pen is 15.6 yuan, which is three times the price of a ballpoint pen. Pens are more expensive than ballpoint pens 10.4 yuan. That's right. Wrong.

6. Twelve kinds of animals, including rats, cows, tigers, rabbits, dragons, snakes, horses, sheep, monkeys, chickens, dogs and pigs, represent the year number of each year in turn. For example, if the first year belongs to the Year of the Rat, the second year belongs to the Year of the Ox, and the third year belongs to the Year of the Tiger ... If it belongs to the chicken of 1, then it is 2006. That's right. Wrong.

7. Hold out your right hand and count the numbers from your thumb, 1, 2, 3, ..., and count them on your index finger when you count to 33. That's right. Wrong.

8, 10 0.65, the result is 10.65. That's right. Wrong.

9. In this way, the 26th number is ⊙. That's right. Wrong.

10, the quotient of dividing two numbers is 7.2. If the dividend remains the same, the quotient will be 0.8 if the divisor is enlarged by 9 times. That's right. Wrong.

Second, multiple-choice questions (5 points for each question, ***60 points)

1 1, in the following temperatures, the closest to 0℃ is ().

A.— 1℃ B.5℃ C.-3℃ D. +3℃

A.B. C. D。

12, in 4.23÷ 1.2, if the decimal points of dividend and divisor are removed at the same time, then the quotient is ().

A. Enlarge 10 times B. Reduce 10 times C. Keep the size unchanged D. Uncertainty.

A.B. C. D。

13, the quotient of dividing two numbers is 0.82. Divider and divisor minus 1000 times, the quotient is ().

A.0.082 B.0.82 C.8.2 D.82

A.B. C. D。

14,801040 tons, rewritten as "10,000 tons", the number is ()

A.80 1.004 tons B.800 1.004 tons C.8000 1.0004 tons D.800 10400 tons.

A.B. C. D。

15, and the following set of numbers that are 29.00 after retaining two decimal places is ().

A.29.002 and 28.999 ...

B.29.03 and 28.939

C.29.003 and 29.003 ...

D.28.896 and 29.04

A.B. C. D。

16. The wholesale price of a newspaper is 0.3 yuan, and the retail price is 0.5 yuan. Xiao Lin wants to earn 50 yuan by selling newspapers on Sunday. How many copies of this newspaper must she sell at least?

180

A.B. C. D。

17, the little red pendulum digital cards: 2, 6, 3, 5, 2, 6, 3, 5 ... are put down in turn until the 30th card. Excuse me, how much are these 30 cards altogether?

a . 120 b . 150 c . 180d . 2 10

A.B. C. D。

18. If A-3.6 = B-7.2, the relationship between A and B is ().

A.a > b.b.a < b.c.a = b.d Not sure.

A.B. C. D。

19, there are 200 flowers, arranged in the order of 4 red flowers, 3 yellow flowers and 3 green flowers, and the last flower is () color.

A. red B. yellow C. green D. uncertain

A.B. C. D。

20. In the figure below, add 0 at the end of (), and the size remains the same.

A. 1.5

B 15

C. 150

D. 105

A.B. C. D。

2 1, the average temperature of a city 1 month-1℃, and the average temperature in February is 5℃ higher than 1 month. The average temperature in this city in February is ().

A.6℃ B.4℃ C.8℃ D.-6℃

A.B. C. D。

22. The food factory processes a cake, and each cake needs 4.8 grams of white cream and 2.8 grams of colored cream. One day, this cake used 72 grams of white cream. How many grams of cream is used in this cake? ( )

Article 32 Article 36 Article 42 Article 44

A.B. C. D。