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Final examination paper of fourth grade mathematics in primary school.

Out of 100 100, 70 minutes to complete) 10000.1000100000005

Creator: Shao of Shangcheng Primary School

Title 12345, giving the total score.

Take the lead

Dear students, through a semester of study, you must have a heavy harvest, please show your style! Don't forget to examine the questions carefully and answer them carefully! The teacher believes you can do it!

Note: Type ★ Title is my original title.

1. Fill in "seriously": (***25 points, 1 points per space. )

★ 1.2008 "Eleventh" Golden Week, the business of major shopping malls in Changshu was booming. By the evening of June 7th, 10200050, the sales in Hualian Department Store reached 1020050 yuan, which was pronounced as () and rewritten as "10,000" with an approximate figure of ().

2. The two numbers adjacent to the smallest six digits are () and () respectively.

3. The quotient of □ 59 ÷ 45 is two digits, the smallest () is in □, the quotient is one digit, and the largest () is in □.

4. You can draw a () straight line after one o'clock and a () straight line after two o'clock.

★5. A fillet is equal to () right angles, and the sum of () 20-degree angles is a right angle.

6、

It consists of () small cubes.

★7. Fill in ">", "

527023 4969200 48×7 350

360÷60 36÷6 175-(30-6) 175-(30+6)

8. There are three roads leading to Xiaoming's home, the lengths of which are 125m, 207m, 1 12m respectively. A path is perpendicular to the highway, so the length of this path is () meters. ..

★9. 100 The height of a piece of paper is about 1 cm. According to this calculation, the height of 10000000 sheets of paper is about () meters, which is higher than the height of Mount Everest (). (Fill in "High" or "Low")

10, in the right figure, there are () acute angles and () right angles.

() obtuse angle.

★ 1 1. There are two bookshelves. There are 80 books in shelf A and 50 books in shelf B. Take out 3 books from shelf A and put them in shelf B at a time. After () times, the books on the two shelves are equal.

★ 12、

Xiaohong strung a string of black and white beads (pictured above), only the two ends of the beads were exposed. You know there are many () colored beads, and there are also many () colored beads. If there are 20 black beads in this string of beads, there are () white beads.

Proposition intention: this big question examines students' mastery of division, angle, number recognition, finding law, parallelism, verticality and other knowledge points. Among them, the ninth question is adapted on the basis of the textbook to further enhance students' sense of numbers, and 12 is linked with life to examine students' flexible use of interval arrangement rules.

Ii. Choose one of the "corresponding seats": ((**5 points)

★ 1, a number is rounded to the approximate value of 30000, and the maximum number is ().

29999 B、34999 C、30000 D、39999

2. As shown on the right, the shape seen from the right is the same as that seen from ().

A, left b, top c, front

★3. The following statement is true ().

A, extend a line segment to one end 100 meter to get a ray.

At 9: 30 am, the angle between the minute hand and the hour hand on the clock face is a right angle.

c、8 10÷5=(8 10×2)÷(5×2)。

★4. Two people throw small cubes in turn, and it is agreed that red face up A wins 1 minute, and yellow face up B wins 1 minute. It is fairest to throw with the cube () below.

A, 2 red 1 blue 1 green 2 yellow b, 3 red 1 green 2 yellow c, 1 red 3 blue 2 yellow.

5. Observe the following formula: 5× 9 = 45.

55×99=5445

555×999=554445

5555×9999=55544445

Then 555...5× 9999 ...9 = ()

10 5 10 9

a、555……5444……45 B、555……5444……45 C、555……5444……45

9 5 9 4 10 5 1 1 4 9 5 10 4

Proposition intention: The five multiple-choice questions arranged in this question are carefully organized. The first question examines approximate figures, the second question examines students' ability to observe objects, the third question is a comprehensive multiple-choice question, including several knowledge points, the fourth question mainly examines the possibility of game rules, and the fifth question examines students' ability to observe, explore and discover laws carefully.

Three. Give a word to "thoughtful": (5 points)

1, the rule of addition and combination changes the operation order of the original formula, but the position of the addend remains unchanged. ( )

2. When three digits are divided by two digits, the quotient is either two digits or one digit. ( )

If the rules of the game are fair, no matter how many times you operate it, you can't tell who is the winner. ( )

★4、540÷36=540÷9÷4 ( )

5. After approximation, a number will become smaller. ( )

Proposition intention: This question mainly examines the students' mastery of some important knowledge points in this book, including arithmetic, written division, the difference between the possibility and result of an event, etc. Students' understanding and mastery of various knowledge points can be understood through the examination.

★ Fourth, the calculation is "meticulous": ((**34 points)

1, a number written directly. (8 points)

240÷6= 120÷30= 24×5= 360-360÷6=

90÷ 18= 560÷70= 6× 15= 3 12-55-45=

2, with vertical calculation, to check the painting. (8 points)

627÷33= ★224÷28= ★720÷68= 966÷42=

3. Calculation of the following problems can be simplified. (18)

(307-208)÷ 1 1 276- 178+22 25×33×4

18×(537-488) 420÷ 14÷5 184+45+ 16

Proposition intention: Closely following this textbook, it mainly examines students' basic skills of oral and written calculation, two-step mixed operation and simple calculation with algorithm, as well as their ability and consciousness of flexible calculation in calculation.

★ 5. Draw a picture with both hands and brains: (***5 points)

(1) Measure the degree of the following angle. (2 points)

(2) Draw a parallel line of ι 1 and a vertical line of ι2 through point A.. (3 points)

Proposition intention: this is called practical problem, so that students can think while doing it. It is mainly to examine the students' mastery of drawing angles and drawing parallel lines and vertical lines with protractor.

6. One use of "Walking into Life": (1 ~ 4 questions, 5 points for each question; The fifth question is 6 points. )

★ 1, Xiaojun participated in the winter sunshine sports long-distance running exercise and ran 1600 meters two days ago. According to this calculation, how many kilometers can he run in a week (5 days)?

2、

(1) Xiaoming wants to buy 1 basketball and 2 footballs. How much should he pay?

★(2) If you buy a badminton racket with 35 yuan money, how many pairs can you buy?

★3、

The situation of planting trees in grades four and five is as follows:

* * * 120 Tree planting in three classes of Grade Four, each with 28 trees.

There are four classes in grade five, each class? tree

How many trees are planted in each class in grade five?

Xiaoming and Xiaogang made a cube with 1~6 written on six sides. They threw the cube 40 times at random, and the result was the number shown in the figure below. (5 points)

Unit: times

eight

seven

six

five

four

three

1 2 3 4 5 6 above

(1) As can be seen from the figure, () is the most upward, and () is the least upward.

(2) If the cube is thrown 40 times, what do you think will happen if "1" is up? Draw "√" under the appropriate answer.

The maximum and minimum times cannot be determined.

( ) ( ) ( )

(3) If it is stipulated that Xiao Ming wins with an upward number greater than 3 and Xiao Gang wins with an upward number less than 3, is this a fair game rule? If it is unfair, how to modify the rules?

Fair ()-Without modification.

If it's unfair, Xiaoming wins.

Xiao Gang won.

Congratulations on all your work. Check it, will you? Maybe you will be more satisfied!

Proposition intention: the purpose of designing this big question is to examine students' ability to solve practical problems by comprehensively applying what they have learned. The last topic is to combine the statistical chart with the possibility and the fairness of the rules of the game, and examine the students' learning situation from several aspects.

Attached:

Reference answer

I. Fill in "Be careful":

65,438+0, 10,200,500, 65,438+00,200.

2、99999 , 10000 1 。

3、4 , 3 。

4, countless, 1.

5、4 , 18 。

6、 12 。

7、< , < , = ,> 。

8、 1 12 。

9, 10000, high.