The calculation is as follows:

Suppose: Lele's money is X yuan, then his brother is X+ 18 yuan.

X+X+ 18=356

That is 2X+ 18=356.

The solution is X= 169.

Again? X+ 18= 187

So: Lele's money is 169 yuan, and his brother's money is 187 yuan.

Thoughts on solving application problems;

(1) correspondence method For a problem composed of related-groups or groups of corresponding quantities, we can find out the quantitative relationship of "correspondence" in the problem, study its changes, and find a solution to the problem. (such as meeting questions)

(2) Decomposition method Some complex application problems are composed of more than several basic application problems. When analyzing this kind of application problems, it can be decomposed into several continuous simple application problems (such as fractional application problems).