Math test questions of Grade 1 in Grade 1 in 27.2

Note: the examination time of this volume is 9 minutes, with a full score of 1.

The total score of the question No.1234 is scored

The score is scored

The reviewer is

I. )

1. The inverse of–2 is _ _ _ _ _ _ _; The reciprocal of 3 is _ _ _ _ _ _.

2. The temperature in Wuxi is–2 ~ 5? C, then the temperature difference of that day is _ _ _ _ _ _? C.

3. On the number axis, point A corresponding to number A and point B corresponding to number B are as shown in the figure, then | A+B | = _ _ _ _ _ _ _.

4. According to relevant information, a pair of unwashed hands carry 85,, kinds of bacteria. This data is expressed by scientific notation as _ _ _ _ _ _ _ _ _ _ _ _.

5. (1) The coefficient of the monomial -2xy7 is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ If each person plants y trees on average, the girls * * * plant _ _ _ _ _ _ _.

7. It is known that x=2 is the solution of the equation 2x–k = 1 about x, then the value of k is _ _ _ _ _ _.

8. As shown in the figure, OE is equally divided. .

1. The picture shows the development of a cube. After folding it into a cube, the word "Jian" is opposite to _ _ _ _ _.

11. There are 4 students in a class. In a Chinese class, the teacher asked the students how many paintings the word "Guo" had. Eight students in the class thought there were six paintings, while 22 people thought there were seven. The frequency of the students who answered the correct strokes is _ _ _ _ _ _. < P > 12. Digital decryption: There is a string of numbers, which all have such a rule: the first number is 3=1+2, the second number is 5=2+3, the third number is 9=4+5, and the fourth number is 17=8+9. The sixth number is _ _ _ _ _ _ _ _.

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Second, choose carefully (this big question is ***6 small questions, with 3 points for each small question, and ***18 points. Of the four options given in each small question, only one is correct. Please fill in the letter code before the correct option. )

13. Integers with absolute values less than 2 are ()

A.1 B.2 C.3 D.5

14. Let A =–(–3–2) 2, B = (–3) × (–2), and C = (–3) 2. a> c B．b> c> a C．a> b > c D．c> a > B

15. After a drug in a drugstore is sold at a price increase of 6% on the basis of the purchase price, it is informed by the Price Bureau that the drug can only be sold at a price increase of 2% on the basis of the purchase price, so the price of the drug should be reduced now ()

A.4% B.3% C.25% D.2%

16. As shown in the figure. , then ∠2 equals ()

a.48? B．42?

C．132? D．138?

17. Among the following four figures, the figure showing the shadows of two small trees in the sun at the same moment may be ()

18. As shown in the figure, there are three views of a geometry composed of some same small cubes, and the number of small cubes that make up this geometry is ()

A.7B.6

C.5D.4

III. Seriously. )

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19. (Full score for this question)

(1) Calculation: (–13)+(–123). (2) Calculation: (–2) 2–(1–.8× 53) ÷. .

(3) Solve the equation: x–13–3x+22 = 1.

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2. (The full score of this question is 4) Find the value of algebraic formula 2 (xy–xy2)–(3xy2–xy), where x=2.

(2) draw a straight line AB intersecting ray CD at p;

(3) Connect BC, draw the vertical section of BC through point A, and e is the vertical leg.

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22. (The full score of this question is 5) As shown in the figure, C, D and E are the three points on the line AB, and AC=12CD, and E is the midpoint of BD

, and DE = , find this angle.

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24. (The full score of this question is 6) As shown in the figure, the straight line AB and CD intersect at point O, OE⊥AB, and the vertical foot is O,

OF bisection ∠BOD, ∠ Doe: ∠ Eo. A survey was conducted on the extracurricular interests

of the students in this class. According to the collected data, he drew the following figure 1 and figure 2.

Please answer the following questions according to the information provided in the figure:

(1) In figure 1, the figure of "painting and calligraphy" was supplemented completely;

(2) In Figure 2, the central angle ∠ AOB = _ _ _ _ _? , the percentage of people who like music, painting and calligraphy and others are _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

(3) What conclusions can you draw by observing Figure 1 and Figure 2? (Just write a conclusion)

Fourth, think about it (the full mark of this question is 8. As long as you explore carefully and think carefully, you will certainly succeed! )

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26. As shown in the figure, AB ‖ CD. Let M and N be moving points on AB and CD respectively, P be any point on the plane (not on straight lines AB and CD), and PM ⊥ PN. Try to explore in the given figure.