With the development of the country’s economy and technology, the use of calculators in daily life has also spread widely. In the field of mathematics, there are a lot of more complicated calculation test questions. If you use the previous oral calculation, abacus calculation, written calculation, etc., it can no longer meet the requirements of mathematics test questions, so you need to replace the most popular and most advanced calculation tools to calculate those complex mathematics. Test questions. This is exactly what people want, so the use of calculators has become the most basic calculation tool in modern society. Normally, it is necessary to study and use electronic calculators in the student days. The calculator can not only calculate those simple numerical problems, it can also solve some difficult problems. For example, some division operations are required to be accurate to four digits after the decimal point. If students use pen to calculate, it doesn’t take a long time to calculate, but because of the electronic calculator, it can be calculated very quickly. Just press the number keys a few times.

is not to say that there is a calculator, it is the most invincible. Although its computing power is very strong, and it can save a lot of time, but if you press the wrong key because of a mistake, it will cause a big mistake. Therefore, it is the easiest and correct method to choose which method to use according to the problem.