# 丫丫丫丫丫丫 # Introduction Xiaoshengchu exam is a hurdle for primary school students. Whether you can prepare well is related to your grades, so primary school students must prepare well for the exam. I have sorted out the knowledge points of solving application problems by mathematical equations in Xiaoshengchu here, hoping to help you.

1, the significance of solving application problems with column equations

* Use equations to solve application problems and get the unknowns of application problems.

2. List the steps of solving application problems with equations.

* find out the meaning of the problem, determine the unknown, and express it with X;

* Find out the equal relationship between the quantities in the question;

* column equation, solve the equation;

* Check or check, write the answer.

3. The method of solving application problems with column equations

* synthesis method: first, list the known number (quantity) and unknown number (quantity) in the application problem into related algebraic formulas, then find out the equivalent relationship between them, and then list the equations. This is a thinking process from part to whole, and its thinking direction is from known to unknown.

* Analysis method: first find out the equivalence relation, then list the known number (quantity) and unknown number (quantity) in the application problem into relevant algebraic expressions according to the need of establishing equivalence relation, and then list the equations. This is a thinking process from the whole to the part, and its thinking direction is from unknown to known.

4. The range of solving application problems by column equations.

Application of solutions to common equations in primary schools;

A general application questions;

B. sum time and difference time;

C, calculating the perimeter, area and volume of the geometric shape;

D score and percentage application problems;

E ratio and proportional application.