This problem should be 2 4 6 8 12 18 ()38, 2+6=8, 4+8= 12, 6+ 12= 18, 8+/kloc-0.

So the rule of this problem comes out, that is, every other number will be added to calculate the next math. The following mathematics can be calculated by analogy, so if you have this problem in the exam, you should read more and think more, and you can find the rules.

It is enough to find the laws that exist in mathematics, even if you try harder, it will be futile. Therefore, when studying mathematics, students should apply divergent thinking to find out various laws in mathematics, so as to learn mathematics-related knowledge well and stop worrying about mathematics learning. In mathematics teaching, it is very important to guide students to discover mathematical laws. Teachers should dig deep into the superficial phenomena of mathematics, understand its internal laws, and adopt reasonable methods to urge students to master the laws of mathematics better. This is not innate, thinking ability should be improved through training and problem solving.