For example: the room has length, width and height, square, rectangle, surface area, three-dimensional figure and sphere; Clocks and watches (degree, time); Useful money (addition, subtraction, multiplication and division); And so on. Mathematics is widely used in life, all the time.

Mathematics seems to be a very profound subject. Even if you want to die hundreds of brain cells, some topics are still foggy, but in fact mathematics is very close to us. It's all around us. Look carefully, there are traces of mathematics everywhere in life.

Let's start at home. Some clocks we usually use only have four numbers on them, which are 3, 6, 9, 12, hehe, all multiples of 3! But the fact is not so simple.

It turns out that these four numbers, starting from 12, increase by a quarter every time they turn, which is very easy to calculate. Besides, the arrangement of these four numbers on the clock is not parallel to each other, or 90 degrees apart. Together, it's just a cross. It looks beautiful.

Let's talk about some two-for-one things we bought in the supermarket. For example, a bag of potato chips costs only 6 yuan, and three bags together cost only 12. It can be inferred that the price of three bags bought together, if replaced by one bag, is 4 yuan, which is more cost-effective than buying one bag.

In fact, mathematics is everywhere in life. As long as you pay attention, this profound subject is around you.