How to list division formulas?

How to list the division formula, the relevant contents are as follows:

1. Calculation

In the vertical calculation of division column, students often make few mistakes when they don't involve the calculation related to "0" (general calculation, not simple calculation), but once they learn the vertical calculation related to "0" (simple calculation), some students are prone to problems. Today, let's talk about the simple calculation related to "0" in vertical column.

First of all: divide 0 by any number that is not 0 to get 0. It is easy to understand that dividing 0 by a non-zero number is to divide 0 into several parts equally. Nothing, no matter how many parts it is divided into, so dividing 0 by any number that is not 0 will get 0.

Then why divide by a number that is not 0? (0 is not divisible), we know what the divisor is, that is, divide the dividend into several parts. If the divisor is 0, isn't it dividing the dividend into 0 parts?

It is out of the question. Give students an example: we eat watermelon in summer and give you a watermelon. Think about how it is possible to divide watermelon into 0 parts. This is unrealistic and impossible. So 0 can't be divided.

There is a 0 in the middle of dividend.

The case where there is 0 in the middle of dividend. To put it simply, when there is a 0 in the middle of the dividend, there is no need to pull down 0 when dividing the column vertically, and 0 is directly the quotient on the head of 0. Then pull the next one. (There is a premise that this can only be done if the bit to the left of 0 in the dividend is divided), that is, if the bit to the left of 0 in the dividend is not divided by the dividend, there will be a surplus. 0 still needs to be pulled down.

Make up a new number with the remaining numbers in front, and then divide it by the divisor. (The general calculation method is on the left, and the simple calculation method is on the right)

Here, it is emphasized that some students have limited understanding ability and are not proficient in using simple calculations for the time being (relatively unfamiliar), but they can still do general calculations before, in order to encourage children (don't let children lose heart and lose confidence because they don't understand for the time being).

You can tell your child that during the exam, if there is no rigid requirement for simple calculation, you can use the general calculation method to calculate vertically. However, it is recommended to use simple calculations as much as possible.

Second, because the middle bit of dividend is not enough to divide quotient 0. This situation is not acceptable. Besides, there is also a premise here, that is, negotiate the one that is not enough points, and then pull the one that is not enough points down with the one on the right. This method can only be used when the one on the right is not enough.