2. If the height of a parallelogram is constant, its area is proportional to its base.

3. The industrial and commercial office randomly selected 40 kinds of goods in a store and found 38 kinds of goods qualified. According to this calculation, the pass rate of goods in this store is 95%.

4. Among all the scores with scores as the unit, the smallest false score is 1 plus the score unit in the topic, and the largest true score is 1- the score unit in the topic.

5. The degree ratio of three internal angles of a triangle is 1: 6: 5, and the maximum internal angle is 90 degrees. According to the angle, it is a right triangle.

6. Xiaohong deposited 1 000 yuan in the bank for three years, with an annual interest rate of 3.24%. Xiaohong can get the principal and after-tax interest 1 *** 1097.2 yuan at maturity.

7. The unit of decimal is the largest composite number in a number, the number in the percentile is the smallest prime number, and the numbers in other numbers are the smallest natural numbers. This decimal is 9.02, and the counting unit is 0.0 1.

8. The quotient of A divided by B is A of B, so the ratio of B to A is B:A, and the ratio is B of A..

9. The two external items of a proportion are reciprocal, one internal item is reciprocal, and the other internal item is reciprocal of the internal item in the question.

1 1. If the length and width of a rectangle are integers (the length and width are not equal).

The perimeter is equal to the area, so the area of this rectangle is

The value is equal to _ _ 18 _ _ _ _.

12. If there are more Mondays than Tuesdays and less Saturdays than Sundays in a month, then the fifth day of this month is Thursday, and this month has 28 days.

13, the experimental primary school needs to build a playground. In order to finish the project three days ahead of schedule, the original work efficiency must be improved 12%. It was originally planned to finish the project in 28 days.

Take the lead

commentator

Second, judge a sentence accurately. Please tick "√" in the brackets before each question if you think it is right, and "×" if it is wrong. (65438+ 0 point for each small question, ***5 points)

(x) 14, 7.08 l = 7 l 800 ml.

(√) 15, broken-line statistical chart can not only show numbers, but also clearly show the changes of numbers.

(√) 16. Add or delete 0 at the end of the decimal, and the size of the decimal remains unchanged.

17。 The circumference of the cylinder bottom is 10 m, the height is 1 m, and the side area is 3 1.4 m2.

(×) 18, Xiaoming's height 1.5 meters, and he waded across a river with an average depth of 1.2 meters, which is not dangerous for him.

Take the lead

commentator

Third, choose one carefully. (65438+ 0 point for each small question, ***5 points)

There are four answers to each question, only one of which is correct. Please fill in the selected answer number on the answer sheet below, otherwise you will not get extra points. .

Title 19 20 2 1 22 23

answer

19. On the graph with the digital scale of 1: 100, what is the actual distance represented by the length of 1 decimeter? (2)

A. 1 decimeter B. 100 decimeter C. 10 1 decimeter D. 0.0 1 decimeter

20. The following statement:

① The volume of the cone is equal to one third of the volume of the cylinder; ② A cuboid has 12 sides and 8 vertices;

(3) The radius of the circle is enlarged by 5 times, and the circumference is also enlarged by 5 times;

(4) Of all the line segments connecting a point outside the line with points on the line, the vertical line segment is the shortest.

How many of them are correct? C

1。

5. Which of the following figures is not necessarily axisymmetric? D

A. circle B. rectangle C. isosceles triangle D. right triangle

6. The sum of two integers is 60, and their least common multiple is 273. What is the product of these two integers? B

273 b . 8 19 c . 19 1 1d . 3549