Teaching to create variable expressions

Mathematics is now becoming a time requirement. In our country, too, the catastrophic of mathematics is paid to mathematics. One of the priorities of the development of science in 2020 is mathematics, Many systematic work has been done in the case of a new quality stage of the 2020. In order to ensure the mutual integration of higher education and research in our country, a new modern building of the V.Rananovsky Mathematics of the Academy of Sciences has been built in the Course. "Mathematics of Math Stone has set our great ancestors such as al-Khwarizmi, Ahmad Fergani, Abu Rayhan Beruni. It's in our blood. But in the last two decades, the level of knowledge has decreased. Because the attention necessary for teachers, we could not give a decent month, the end of the end.

The Primary Class Mathematics program is meant to teach issues that adjust equations.

Students are currently taught to read suspicious expressions such as A + B, C-D, A-C, B + D, X + A, X-A. He then shows ways to calculate the values of sensitory expression. In this case, the following forms are given:

• 1.    Count the value of a + 4 when you are a = 1, 2, 3, 4.

• 2.    Complete the table

A	16	18	20	22	24	28	28
B	8	10	12	14	16	18	20
a-b

It is important to teach students to form a sensitive expression. To do this, they must first recommend the following forms of exercises:

• 1.    The number 12 is more than 3 in an indefinite number. Find an unknown

• 2.    The number 7 is less than 5 in an unknown number. Find an unknown number.

• 3.    What number 3 is formed in the number 35, the number of 38 is formed?

• 4.    What number 20 can we cut, form 14?

• 5.    What number of numbers can we spend 8, it is formed?

• 6.    How much is more than 6?

• 7.    What are the fewer than the number 48 40?

• 8.    The thought of more than 17 to 10. What number of thought?

• 9.    The thoughtful number is 8 less than 13. What number of thought?

• 10.    The sum of two numbers is 40. Find the second added if one of them is 8.

• 11.    Find the lost, if 60 decreases, 60 separates.

• 12.    60, Find a reducer.

number.

In primary school mathematics, methods mainly cover the following forms of equations.

x – 8 = 20

10 + x =

45 – x = 30

28 – x = 20

x – 10 =

x – 45 = 30

x

+ 8 = 28

90 – x =

2 + x = 100

+ x = 28

90 – x = 0

x + 98 = 100

* x = 20

x : 8 = 2

8 : x = 3

Before such an equation solving the issues, it is necessary to teach students' sensitural expression.

• 1.    Find the passage of the number x and 8.

• 2.    Find the sum of the number 10 and x.

• 3.    Find a separation of the numbers 45 and x.

• 4.    Find a spare of the numbers x and 10

• 5.    Find an increase in the number 8 and x.

• 6.    Find the division of x and 8.

• 7.    Find the division of the number 8 and x.

Various issues can be used in teaching the conclusion of the harmony.

• 1-    the matter. The warehouse has X Ta Taasdash and 40 shovels. How many instruments are there in the warehouse?

• 2-    the matter. Lola has 10 poetic books and x ta picture books. How many books are Lola are there?

• 3-    the matter. 16 books of Lola are bore. He gave the x book to his friend. How many books Lou is left?

• 4-    the matter. Rahim has planted the seedlings of X. 5 Lola bruised. How many lolas did not sprout.

• 5-    the matter. Munira is 10 years old. The brother is a young one of him. The brother is smaller than how old.

• 6-    the matter. X a boy and 8 girls are bathed in the lake. How many kids are all in the lake?

QUESTIONS:

• 1.    Find the sum of the numbers x and 7.

• 2.    Find an amount of x and 8 of the number x.

• 3.    On the first day of Alisher, he read 8 pages and 13 pages on the second day. Antime, How many books did Alisher read a book?

• 4.    There is x window on a floor. How many windows do you have on 3 floors?

A) x-7 b) x + 7 c) x * 7

A) x + 8 b) x: 8 c) x * 8

A) x + 13 b) x: 13 c) x * 13

A) x * 10 b) x: 13 c) x * 3

Take off the equation in the form x = 27.

The unknown number that should be found in the letter X is determined.

27 + x = 27 is an equation.

The equation is deducted as follows: The equality is to know what number of you to put in place instead of X. It can be known that the equation is correct, which is formed 27 when it adds 0 to 27. The resolution of the equation is written in such:

27+ x = 2 inspection:

X = 27-27-27-27 + 0 = 27

X = 0 27 = 27

If one of the jurists are unknown, you need to repay a combined combined combination.

Sample: 37 + x = 47 Checking:

x = 47-37 37 + 10 = 47

x = 10 47 = 47

Make expressions based on the table and solve them:

Accompanying	47		35	24	56		64
Accompanying		26		31		32
Gathered	47	60	70		80	61	90

If there is a separate unknown, it is necessary to separate the latter.

Sample: 57 - x = 17 Checking:

x = 57 - 17 57 - 40 = 17

x = 40 17 = 17

Make an equation and solve an equation based on a schedule:

Dimer	45		59		70	69	54
Divisive		24		12	56	17
Unumid	40	41	43	17			27

Through such tables, students learn to compile each and learn to solve the equation. In short, students will help to shape the skills of creating an equation in the expression of the expression.