Unfortunately, children are currently practically unable to make calculations in the mind. This happened due to the fact that modern technologies offer each child to solve the problem with a couple of clicks. For many children, the Internet has replaced not only textbooks, but also certain skills. Increasingly, you can hear from the younger generation that you don’t need to know math, since you always have a calculator or a phone at hand. But the true significance of this science lies in the development of thinking, and not in overcoming the fear of being deceived by a market trader.
The division in the column helps students in elementary grades to become familiar with operations on numbers. Thanks to him, the multiplication table is fixed in memory, and the skill of performing addition and subtraction actions is also honed.
To implement this arithmetic action, you need to get acquainted with its components:
1. Divisible - a number that undergoes division.
2. Divider - the number divided by.
3. quotient - the result obtained by dividing.
4. The remainder is the part of the dividend that is not amenable to division.
American and European bar models
The division rules in the column are the same in all countries. There is only a difference in the graphic part, that is, in its recording. In the European system, a dividing line, or so-called corner, is placed on the right side of the divisible number. The divider is written above the line of the corner, and the quotient is written below the horizontal line of the corner.
The division in the column according to the American model provides for setting a corner on the left side. The quotient is written above the horizontal line of the corner, directly above the divisible number. The divider is written below the horizontal bar to the left of the vertical bar. The process itself is no different from the European model.
Division by a double-digit number
To
divide a multi -digit
number into a two-digit
number , you need to write it according to the scheme, and then carry out the action. The division in the column begins with the highest digits of the dividend. The first two digits are taken if the number formed by them is greater than the divisor by value. Otherwise, the first three digits are separated. The number formed by them is divided by the divisor, the remainder goes down, and the result is written in the dividing corner. After that, the digit from the next digit of the divisible number is transferred, and the procedure is repeated. This continues until the number is completely divided.
If it is necessary to divide the number with the remainder, then it is written separately. If it is necessary to completely divide the number, then after the end of the digits of the number, a comma is put in the answer, indicating the beginning of the fractional part, and instead of the digit numbers, zero is carried down each time.
The division in the column develops attentiveness and perseverance, logical thinking and memory. It is important to remember how this action is performed so that, if necessary, share valuable knowledge with your children and help them with homework.