In daily life, verbal calculation is an essential skill in life. There are many advantages to sticking to your word. First, insisting on oral calculation every day can improve the calculation ability and develop the potential of the brain. For primary and middle school students who are still growing up, insisting on oral calculation can help children train their mathematical thinking ability and lay the foundation for future mathematics learning. Therefore, we must urge our children to stick to their words. It is very important to cultivate children's mathematical ability. Good math literacy in the future senior high school entrance examination can help children take the lead in exam-oriented education.