New people's education printing plate second grade primary school mathematics second volume midterm examination paper

666+888÷4 ○(666+888)÷4 40×50+50×90○40×(50+90)

800-432÷6×9 ○ 800-432÷(6×9) 78+78×99○78× 100

9. The price of a hardcover edition of The Journey to the West is 120 yuan, a set of Water Margin is 98 yuan, a set of Children's Encyclopedia is 299 yuan, and you have to pay () yuan to buy 15 sets of The Journey to the West. If you want to buy 2 sets of children's encyclopedias, 1 set of Water Margin,

10, isosceles triangle, the top angle is twice the bottom angle, and the bottom angle is () degrees, which is also a () triangle.

Three, repeated comparison, merit-based admission (8 points)

1, ∠ 1 and ∠2 are two internal angles of the same triangle. Among the following triangles, () is a right triangle.

a、∠ 1= 18，∠2 = 8 1； b、∠ 1= 18，∠2 = 72；

c、∠ 1= 18，∠2 = 82； d、∠ 1= 18，∠2 = 18；

2. In the figure below, () is not an axisymmetric figure.

A, rectangle b, equilateral triangle c, parallelogram d, square

3. Cut a stick with a length of 15cm into three sections to form a triangle, and the bottom () can form a triangle.

a、 1 1cm、3cm、 1cm； 4 cm, 5 cm, 6 cm

C, 3 cm, 4 cm, 8 cm; D, 3 cm, 3 cm, 9 cm;

4.2, 7 and 9 can form () different three numbers.

a、3； b、4； c、6； d、9；

Fourth, hands-on operation and careful drawing. (4 points)

1. Make the following figure to specify the height of the bottom. 2.( 1) First, rotate the rectangle in the figure 90 degrees clockwise around point A; (2) Translate the rotated figure by 4 squares to the right.

5. Go into life and solve problems. (30 points)

1, a battery thrown in the soil will cause 190 square meters of land pollution and make plants unable to grow. Xiaoming found 15 used batteries on the grass in the park. * * How many square meters of land pollution can be reduced?

2. Fruit shop delivery 18 boxes of apples and 20 boxes of bananas. These two fruits are per box 15 kg. How many kilograms of apples and bananas did the fruit shop send?

3. Young Pioneers mow the grass. The first group 14 people, * * mowing 154 kg, and the second group 13 people * * * mowing 130 kg. Which group mows more grass on average? How many kilograms more?

Ticket sales for the 2008 Olympic Games are in full swing. The lowest fare for handball competition is 30 yuan, and the lowest fare for swimming competition is four times less than that for 20 yuan. How much is the lowest fare for swimming more expensive than handball?

It takes 500 yuan to pave a piece of land with a square brick with a side length of 3 minutes. How many pieces does it take to replace it with a square brick with an area of 25 decimeters?

6. The prices of Yangzhou Park are as follows

The number of ticket buyers exceeds1~ 4041~100100.

Ticket price per person (RMB) 50 45 40

There are 42 people in class one, 4 1 person in class two, and 38 people in class three go to a school for a spring outing.

How much does it cost to buy tickets separately for each class?

How much does it cost to buy tickets for three classes together? Respondent: Lu Xiaoya | Level 1 | 20 10-4-26 12:20 | Report.

10 respondents: 1062429834 | Level 1 | 2014-26 20: 06 | Report.

1. Multiple choice questions (3 points for each question, * * * 45 points)

The arithmetic square root of 1 196 is ()

A. 14 B. 16 C. 14 D。

2. The irrational number is ()

A. Infinitely cyclic decimals B. Numbers with radical signs

C. All real numbers except finite decimals D. All real numbers except rational numbers

3. The following patterns are the symbols of several domestic banks, among which the axisymmetric pattern is ().

1 (B)2 (C)3 (D)4。

The square root of 4 is ()

A.2b.2c.4d. does not exist.

5. In the following categories, the correct one is ()

A.B.

C.D.

6. The top angle of an isosceles triangle is 80, so one of its bottom angles is ().

40 BC to 50 BC

7. The area of three squares is shown in the right figure (4), and the area of square A is ().

A.6 B. 36

C.64 D. 8

8. As shown in the figure, the right triangle among the following triangles is ()

9. Xiao Ming accelerated as soon as he left school, drove at a constant speed for a while, then slowed down and finally stopped. The following figure can roughly describe the changes of his time and speed in this process ().

A speed b speed c speed d speed

Time time time time time time time.

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

10 is a rectangle with an area of160m2. The expression of the relationship between the length y meters and the width x meters is ().

A.y = 160 x b . y = C y = 160+x D y = 160-x

1 1. The picture on the right is a round barrel with a bottom diameter of 24cm and a height of 32cm, which can be accommodated in the barrel.

The longest stick is ()

A.20 cm wide and 50 cm high

C.40 cm deep 45 cm

12, and the right figure shows the relationship between vehicle speed (km/h) and time (min). The following statement is correct ().

1。

(1) The driving time of the car is 40 minutes;

(2)AB means that the car is driving at a constant speed;

(3) In the 30th minute, the vehicle speed is 90km/h;

(4) The 40th minute, the car stopped.

13. The following statement is wrong ()

A. Two triangles symmetrical about a straight line must be congruent; B. an axisymmetric figure has at least one axis of symmetry.

C. congruent triangles must be symmetrical about a straight line; An angle is a figure that is symmetrical about its bisector.

14. When two right-angled sides of a right triangle are expanded to twice the original at the same time, the hypotenuse is expanded to the original ().

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

15. It is known that two non-parallel line segments AB and A'B' are symmetrical about the straight line 1, and the straight line where AB and A'B' are located intersects with point P, and the following four conclusions are drawn: ① AB = A 'b'; ② Point P is on the straight line 1; ③ If a and A' are corresponding points, the straight line 1 vertically bisects the line segment aa'; (4) If both B and B‘' are corresponding points, then PB = PB', and the correct one is ().

A.①③④ B.③④ C.①② D.①②③④

The answer sheet of the first semester of the 2006 school year was given.

The title is12345678 91012131415.

answer

Fill in the blanks: (5 points for each small question, * * * 25 points)

1. Xiao Fang looked at the electronic clock opposite the mirror and the reading was 2: 35. Can you determine the exact time?

2. The square root of is,; The cube root of 0.2 16 is.

3. Every time the rabbit jumps, it is 1 meter. Jump straight 12 times before turning left. Then it jumps five times in a straight line and turns left. Finally, the straight jump 13 times just returned to the original position. So the angle of the white rabbit's first left turn is.

4. The temperature change on a certain day is shown in the figure. The temperature at 9 am is ____oC, which is the same as that at night. The highest temperature on this day is _ _ _ _ _, reaching _ _ _ _, and the lowest temperature reaches _____oC, at _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

5. As shown in the figure, in ABC, C=, AD divides BC to D, DE⊥AB to E, AB= 10cm, AC=6cm, then the circumference of BDE = _ _ _ _ _ _ _ _ cm.

Iii. Answer: (5 points for each small question, 30 points for * * *)

1. Compare the size of sum; 2. Simplify:

3. As shown in the figure, A and B are two reservoirs, both on the same side of A River. In order to facilitate the irrigation of crops, a pumping station should be built by the river to send the river to A and B. Ask where the station is built by the river to make the repaired river shortest, and try to determine this point in the figure (keep traces of drawing).

4. As shown in the figure, pull AB line and AC line at 5 meters from the ground on both sides of the pole to fix the pole. Life experience shows that when the distance between the anchor point B (or C) and the pole bottom point D is the length of one side, the pole is relatively stable. How long does it take to stabilize the pole? Try to answer with what you have learned. (accurate to 1 m)

5. Xiaoming drew a quadrilateral as shown in the figure, where AB=4, BC= 12, CD= 13, DA=3, ∠A=, can you find the area of quadrilateral ABCD?

Father told Xiaoming: "The farther away from the ground, the lower the temperature" and showed Xiaoming the following table.

Height from the ground (km) 0 1 2 3 4 5

Temperature (℃) 20 14 8 2

According to the above table, dad gave Xiaoming the following questions. You and Xiao Ming should answer together.

(1) Which two variables are reflected in the table above? Which is the independent variable? Which is the dependent variable?

(2) If H stands for height above the ground and T stands for temperature, how does T change with H?

(3) Do you know what the altitude temperature is 5 kilometers above the ground?

(4) Can you guess what the altitude temperature is 6 kilometers above the ground?

Answers to the first-grade mathematics examination questions in the mid-term exam of last semester in 2006 school year

1. Multiple choice questions (3 points for each question, * * * 45 points)

1. Answer 2. D3、C 4。 b5。 6.B. 7.B. 8。 D 9、C 10、B. 1 1。 C.

12、c 13、c 14、a 15、d。

Fill in the blanks: (5 points for each small question, * * * 25 points)

1、9∶25 2.,0.6; 3、900

4, 26oC, 2 1, 32℃, 15, 3 o'clock to 22oC, 10℃, 12, 3 o'clock to 15, 15 to 3 o'clock the next day.

5, 12 cm.

Iii. Answer: (5 points for each small question, 30 points for * * *)

1.< ; 2.2

3. Make point C where point A is symmetrical about line A, and connect BC to point P, then point P is the location of the pumping station.

4.2 meters.

5、36

6.( 1) Height and temperature. Height. Temperature.

(2) smaller

(3) ℃

(4)- 16℃ Mid-term Mathematics Examination Paper of Volume II of Grade Four.

Release: Hao Zhanjiang Time: April 2, 2009114: 32:12 Source: Wuzhong Education Information Network Click: 3 125 Discussion: 2.

Mid-term examination paper in the second volume of the fourth grade

Name: Score:

First, calculate carefully and check carefully. (***53 points)

1. Write the numbers directly (each small question 1 point, *** 15 point).

400÷20= 398+56= 45×30= 730+670= 20+80×4=

540- 190= 28×25= 20 1×4= 900- 172= 9+9×99=

6400÷80= 70×60= 300+463= 3000÷50= 120-20÷ 10=

2, with vertical calculation, with inspection ※. (2 points for each small question, *** 10)

135×46= 105×46= 70×370= ※820÷50=

3. Simple calculation. (3 points for each small question, ***27 points)

55×25+25×45 930×48+7×480 77× 13- 13×27

142+586+358+ 1 14 195×20 1- 195 72× 125

(40+4)×25 104×32 28×37+74×37-37×2

Second, think with your head and fill in the blanks carefully. (65438+ 0 points for each small question, ***6 points)

1, in a triangle, ∠ 1 = 32, ∠ 2 = 48, then the third angle is (), which is a triangle ().

2. In a right triangle, one acute angle is 60 and the other acute angle is ().

3. The top angle of an isosceles triangle is 100, and the bottom angle is ().

4. Fill in "

5.85×99+85=85×(99+ 1) The law () is applied here.

6. Make a big triangle with two identical triangular rulers, and the sum of the internal angles of this big triangle is ().

Three. Judgment (tick "√" for the right and "×" for the wrong) (each small question 1, 6 * * *)

1. Adding and subtracting parentheses in an equation can change the operation order of this problem. ……………( )

2. Three ropes with lengths of 3cm, 4cm and 5cm cannot form a triangle. ……… ( )

3、847- 198=847-(200-2)……………………………………………… ( )

4.24×5×76×5=(24+75)×5 ( )

The simple algorithm of 5.56 × 17+43 × 17 is (56+43+L) × 17 ().

6.35×99=35× 100+35=3535。 ( )

Four, repeated comparison, careful choice (fill in the serial number of the correct answer in brackets) (65438+ 0 points for each small question, ***5 points)

1, the three internal angles of a triangle are 95, 25 and 60 respectively, and this triangle is ().

① acute triangle ② right triangle ③ obtuse triangle

2, two identical isosceles trapezoid, can spell ().

① Rectangle ② Trapezoid ③ Parallelogram ④ All three are possible.

3. In the following formula, the result is not equal to ().

① 1800÷2÷8= 1800÷(2×8) ②36×( 15+5)=36× 15+36×5

③ 18×6÷ 18×6=( 18×6)÷( 18×6) ④78×3+56÷4=(78×3)+(56÷4)

4. 102×98 is equal to ().

①( 100+2)×98 ② 100+2×98 ③ 100×98+2

5 The basis for calculating 76×96 with a simple method is ().

① Multiplicative commutative law ② Multiplicative associative law ③ Multiplicative distributive law ④ Multiplicative commutative law and associative law.

Verb (abbreviation for verb) uses knowledge to solve problems.

(1) Look at the pictures and fill in the blanks. (each space 1 minute, *** 15 minute)

Take the school as the observation point:

The post office is in the north of the school, and the distance is 100 meters.

The bookstore is in the direction of the school, meters away.

The distance between the library and the school is meters.

The cinema is in the direction of the school, the distance is meters.

(2) Choose with your heart. (Per grid 1 minute, ***5 points)

1, Xiao Qiang sees Xiao Lin in (), Xiao Lin sees Xiao Qiang in ().

A, 50 b north by east, 50°c east by north and 40 south by west.

2. (1) Take the supermarket as the observation point, and the shopping mall is in ().

A, due south b, due west c, due east

Taking the supermarket as the observation point, the school is in ()

A. 30 degrees southeast, 30 degrees southeast and 30 degrees northwest.

(3) Starting from the Green Garden Community, you can walk to the school.

a、3 B、4 C、5

(3) Solve the problem (10)

1. School group gymnastics performance, 400 boys and 340 girls, 20 people in each row. How many lines do girls stand less than boys? (5 points)

2. I bought 8 sets of stainless steel bowls in the school canteen, each set of 9, and spent 2 16 yuan. How much is each bowl? (5 points) Respondent: Zi Xuan PP | Level 1 | 20 10-4-26 20:43 | Report.

Uh, I'm not satisfied, uh, I haven't studied, uh, I'm also in the fourth grade, and I'm in the People's Education Edition. Map instructions:

This data comes from Baidu map, and the final result is subject to the latest data of Baidu map.

Respondent: 1 I love Moore Manor | Level 1 | 20 10-5-8 15:27 | Report.