Ask for some answers. Qiandongnan 20 12-20 13 school year, the first semester final exam, the ninth grade history examination paper.

First of all, it fills the gap in China (30 points for each air separation).

Calculation of direct writing:-4+0 = _ _ _ _ _ _ _ _ _ (-32) ÷ 4 = _ _ _ _ _ _ _ _ _ _.

2, a reasonable square of 81_ _ _ _ _ _, which is equal to the reciprocal of the number is _ _ _ _ _ _ _ _.

3. In the long jump of the 8th school sports meeting, Xiaoming jumped 4.22m +0.22 Xiaodong jumped 3.85m and 4.00m..

Win 1, draw 1.

5, set the differential equation of the 4th degree and the 3rd degree _ _ _ _ _ _ _

6. The number of unit lengths of two coordinate axes from the origin and the left side of the origin, and then calculate the number of their opposites _ _ _ _ _ _ _.

7. Comply with relevant laws and regulations and fill in online figures:

_________ 32 _________。

Time is about 70 times the normal average heart rate per minute (scientific notation)

9。 Algebraic opposition, y, a, b, reciprocity.

Six numbers are filled in 10, and according to a certain rule, inadvertently

A drop of ink can't be erased, what do you think?

Multiple choice questions (3 points for each small question, 30 points for * * *)

1 1。 Bookstore, the school homepage is 20m south and100m north. It is located on a north-south street, 50m away from home, and 70m north in Zhangbei County, home, school, home and bookstore () BR/& gt；; A. family B. bookstore, school CD plus position is in the upper position.

The exchange rate below 12 is correct ()

A, b,

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>13, c, d, and the attribute (band) according to the equation.

The answer is: X2 = 2×- 1 = 3 2×= 4 width x = 1:00≤ deformation.

C, d is obtained from X2 = 9 x = 3, 2 times-1 = 3 times and 5 times =-1.

14, the formula (1) is known, and the solution of 3- 1 = 2× 1 234 is X =

(Equation)

A.② and ③ B. ③ ④ C. ③ and ④/ 15 in 4d, if the value ().

AB，C，D， 1

16, 6:00. In the morning of 2004, the water level of Liujiang River was 80.4m, and the water level rose by 5.3m to 0.9m m. The extraction time was 1 1:30 to 18:00.

AB76, 84.8m, E 85.8m, 86.6m..

17,199, the birth rate and death rate in Shanghai ℅ were 7.3% at 099 (18: 00), and the growth rate was ().

0 2.3% 0 0 0 0- 12.3%， 12.3%，0

18, the plot whose absolute value is less than the whole number ()

A 6，-36°C，0° D 36

19 =()

A. 1 b .- 1 c .-2002e BR/>； 20, countdown to 2002 ()

A.- 1 - 1 B. 2.5 CD 2

Written calculation steps for required questions (5 points for each question, 30 points for * * *).

2 1(- 10)+(- 1)22,6 - (-6)

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23,24

25,( - + - )×(-48 )26. 1÷(-5)×( - )

Solve the equation: (5, each question, *** 10) BR/ Answer the question, 27th, 9 -3Y 5Y +5 = 28 = 4.

The side length of a triangle is cm (3× 2 29 (5)) cm (8-2x) to determine the perimeter of the triangle. If x = 3, what is the circumference of the triangle?

30, fill in the form, (5)

× 1 1 0 2 / Y 2 3 3 1

(XY)2

X2-2XY + Y2

(1) Observation table, you write down your results below. ( 1)

(2) You will find: 532-2×53×23 +232(2)

3 1 (Topic 5) Go to the store to buy exercise books and backs, and then ask the students: "The shopkeeper told me that if you buy me a discount of one percentage point, I will buy 16. Can you guess that the original price is RMB per lot? " Can solve his problem? This solution attempts to formulate equations.

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The reciprocal of the absolute value of 32(5) is called: a, negation, b, c, d: >

BR/a & gt；

Grade seven math (I) questions (II) multiple-choice questions (Paper II, ***30 points)

Error ()

(a) Acute angle less than (b) is acute angle, and right-angled obtuse angle is greater than and less than.

(D)/ 2。 Investigate and collect survey data ().

Check and participate in social practice activities on weekends to understand the investigation of your classmates and each group in each pumping station.

In two cities (a) and (b), 500 candidates were randomly selected from 40,000 graduates who participated in the test statistics.

(c), check the qualified rate of each block.

(D)？ In order to know how the working-class students finish their homework, the teacher will check the reception.

Right parenthesis ()

(A)A-(BC)= ABC，(B)，(BC)= A + BC

(C)A-(BC)= A + B + C(D)A-(BC)= AB +？

Figure 4. Points B, O and D are on the same straight line along ∠2 degrees ()

(A)(B)(C)(D)

B stands for two unequal A+B = 7 XB = 6, and A and B stand for ().

(A)= 2，B = 5 5

(B)= 1，B = 6(C)，A = 2，B = 3

(D)= 3，B = 4

6。 The following statement is correct: p (video line)

(1) The vertical line or straight shell point of a straight line, (2) The straight line L of the straight line passing through point A and point B is a straight line, so the distance between it and the length of the vertical line of the line drawing the vertical line at point ④ is called the dashed line L in the vertical direction; Sharp;

1(B)2(C)3(D)4

7。 If a and b are cubic polynomials, A+B () is cubic polynomial.

(A)(D)(B)

8。 The following statement:

(1) these two things, only in a straight line; (2) Co-angle, in which an inner angle is equal to a point, and the two lines are parallel; 4? Complementary angular bisectors are perpendicular to each other.

Correct ().

1(B)2(C)3(D)4

9。 The following statement: (1) The intersection of these two lines ② is not necessarily the same point ③ The straight BA of the straight line AB is two different lines ④ Two different lines can have no two sides * * equal to 12 1②, right ().

10。 Multiplication of several rational numbers is not equal to 0, and the integrable symbol ().

(A)(B) Is it determined by many factors, depending on the number of values?

1 1 negative factors. The correct of the following four propositions is ()

(a) Ray AB and Ray BA followed.

(b) Two identical vertices and equal angles perpendicular to each other.

(d) In the third line,

Internal angle 12, complementary and adjacent. Cylinder (as shown below).

(A)(B)(C)(D)

13。 The following statement is true ()

(a) The ratio 3. 14 (b) is a positive integer and a negative integer, hereinafter collectively referred to as positive integer and negative integer fraction.

Rational number (c), rational number (d)

The integer and decimal parts of the number 14 are a reasonable number. This figure shows a vertical pedal ()

(A)(B)

The extension lines in paragraphs (c) and (d) may be longer than those in paragraph (d).

15 The following statement is true (just go). three

Is it greater than-3,3, (a) and (b)? five

2 5-3-3 2- 1/A >；

2. Fill in the blanks (2 points for the test paper, 30 points)

Reading, or reading, because they are.

The intersection line of the cone _ _ _ _ surface around the straight line is _ _ _ _ _ _.

3。 = ______

4。 The fourth line per unit length from the source is _ _ _, _ _ _, _ _ _.

Please write _ _ _ _ _.

6。 The absolute value is equal to 3. Rational American spiritual wanderer.

7。 10 June, Cape Canaveral Air Force Base, Ghana, 206 days later, the pilot set off 480 million kilometers, and 65438+2004 10 on the 15th Star Trek list successfully landed on the surface of Mars. 4800000 km in _ _ km scientific notation.

Two students stand together, head to head. In fact, in the first two articles, this is the length of the _ _ _ _ _ _ line (fill in "Fa" or "Fa"). BR/>； The exact figure of $430 million is valid.

10 riddle: secretly planning harm: _ _ _ _ _ _ (mathematical knowledge of the answer)

1 1。 The calculation formula is as follows:

( 1)( 10)×(+)=;

(2)(5.8)( 1.84)=

The statement reads as follows:

( 1)A×(B + C )= A×B + A×C()

(2)÷(B + C)= A÷B +÷()BR />(3)(A + B)÷C = A÷C + B÷()

(4)×(B×C)= A×B×C()

(5)÷(2×3)=÷B×C()

(6)÷(÷3)=÷B÷C()

13。 The length of a line segment is a finite number and an infinite measure, _ _ _ _ _ _ _ _ _ _ _ _ _.

14 29÷3 = _____

15 polynomial letter x is _ _ _ _ _ _ _ _.

Answers (papers 4, 40).

(2) The difference of personal binomial written by (1) polynomial; Binomial polynomial writing

(3) The M4-2m2n2-2 project covers an area of 20,000 square meters. +2N2+N4 brackets:

(1) Parentheses (3; ) -9 +5×(-6) - (-4)÷(-8)。 & ltBR/(4)-22-[-+(0.2×- 1)÷(-)]

9。 The following is a long and narrow rectangle marked with letters, and each side needs to answer yes:

Which side of the polyhedron of the (1)B surface?

(2) If E is a polyhedron from left to back in multiple planes, which side is in front?

(3) On the right side of surface B, when viewed from above, the e on the side?

Each number of 10 is as follows: BR/& gt；; (1)3.425 (accurate to 0.0 1)(2)0.009459 (micron)? What does rounding need? > (3) 34567 (accurate to thousands; ) (4)234 560 (closest to 10000) seventh grade math test questions (on) ()

Answer multiple-choice questions (file 2, ***30 points)

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Direct injury

2dd & lt； Direct injury

5。 second

6 b

b？

9br/>； 3。

1 1

12。 one

13。 ? 14。

2。 Fill in the blanks (2 points for each small question, 30 points)