Math teacher: 13 questions over and over again in elementary school, and the children's math scores are soaring.

There are many children whose math scores have not been very good since elementary school. When they go to junior high school and high school, their scores will get worse and worse. But in fact, there are 13 problems in elementary school. If you can understand these 13 problems thoroughly. , that math scores will skyrocket.

First: the question of age

There are three main points in the age question. The first one is that the age difference between two people is constant.

The second is that the age multiples of two people will change, and the third age will increase at the same time.

Second: the problem of chickens and rabbits in the same cage

This problem often troubles many elementary school students, but in fact, if you want to answer this question perfectly, you only need to know one thing, that is, to find out the total difference and the unit difference, as long as you know these two differences, then this problem will be solved easily .

Third: the problem of cattle grazing

This problem is similar to the problem of chickens and rabbits in the same cage. As long as it is accurately grasped, the amount of raw grass and the growth rate of grass will remain unchanged, then solving this problem is simply a piece of cake.

Fourth: cycle

Fifth: Average

The average is actually dividing the total quantity by the total share, so that the quantity of a share can be found.

Sixth: Geometric Calculation

Seventh: Calculation Order

First multiply and divide and then add and subtract with parentheses. Calculate the parentheses first.

Eighth: Fractions and Percentages

Ninth: The principle of drawers

Tenth: The Law of Number Sequences

Eleventh: Congruent remainder

Twelfth: Cycle

Thirteen: Summation of Sequences

There are many formulas in the summation of the sequence, as long as you determine which is the unknown quantity and which is the known quantity, and then apply the formula.

In fact, the first grade to the sixth grade of primary school only learns these 13 kinds of questions. If you master all the 13 kinds of questions thoroughly, you will have absolutely no problem in being admitted to a good junior high school. Parents, hurry up and collect them. .