Simple elementary school math problem, 10-6=4.

Mathematics is a discipline, and it can also be said that mathematics is a tool. The existence of mathematics enables us to express everything in the world with quantitative values or formulas, including everything in the universe, as small as molecules and atoms, and even language, words and emotions. It can also be said that mathematics is the foundation of everything in the world. Mathematics is also closely related to our life. Mathematics has been taught since childhood, and has been used in universities, masters, doctors and even higher-level knowledge. Therefore, children should learn math!