Math test questions

Name, student number, class score

Fill in the blanks (3 points for each small question, 30 points for * * *)

1. If the income of 100 yuan is recorded as+100 yuan, then the expenditure of 50 yuan is recorded as yuan.

2. On the number axis, the distance between the point representing -2 and the origin is.

3.= , = ,-4-3= .

4. On a certain day in February this year, the lowest temperature in M city was-19℃ and the highest temperature was -3℃. So on this day,

The maximum temperature is 10℃ higher than the minimum temperature.

5. According to the design index of shenzhou spaceship's environmental control and life support system, Shenzhou 5 spacecraft returned to the capsule.

The temperature is 265438 0℃ 4℃. The maximum temperature of the return capsule is 100 degrees Celsius.

6. Comparison size: 0; .

7. If the sum is reciprocal, the value of is equal to.

8. Scientists' research shows that when the ratio of lower limb length to height is 0.6 18, it looks the most beautiful. The adult woman is 153cm tall and her lower limbs are 92cm long. The best height of high-heeled shoes worn by women is about _ _ _ _ _ _ _ _ cm. (accurate to 0. 1

9. Scientific discovery: the number of petals, sepals, fruits and other characteristics of plants are very consistent with a strange series-the famous odd-numbered Peibona series: 1, 1, 2, 3, 5, 8, 13, 2 1 34.

10. When Xiao Ming went up the stairs, he found that if there was only one step, there was a way to go. If there are two steps, you can walk on the ground step by step or go up step by step. There are two ways to walk. If he can only go up one or two steps at a time, according to the above rules, he has three ways to go in three steps, then there is one way to go in four steps.

Second, multiple-choice questions (2 points for each small question, 20 points for * * *)

The reciprocal of 1 1. Yes ()

Article 3, paragraph 2, paragraph 3, paragraph 4

12. Among the following four numbers, the number between -2 and 0 is ().

(A)- 1 (B) 1 (C)-3 (D) 3

13. 1,-1 and -2, the maximum sum of any two numbers is ().

1 (B)0 (C)- 1 (D)-3

14. If is, the value range of is ().

(A) >0 (B) ≥0

(C)