It depends on your own preferences. In general, the algebra part of the seventh grade is more prone to make mistakes than the geometry part, and there are many kinds of algebra problems. If you want to solve them one by one, it is difficult to improve your grades. The most important thing is to master the problem-solving skills, memorize the formula first, and then do more problems on the corresponding formula. If you are wrong, carefully check where the local mistakes are, so it should be possible to solve algebra problems.