When solving math problems in the second grade, you only need to answer orally.

An oral answer means that you don't need to write down what you say orally. Under normal circumstances, by the time of the second volume of the second grade, the speed of children writing Chinese characters has increased, and the amount of Chinese characters they can write has also increased. At this time, in order to make a better transition to the third grade, the teacher will ask for an answer.