I. Digital introduction
Number is an abstract concept, which is used to calculate, measure and represent quantity. It can be an integer, a decimal, a fraction, etc. And "number" is a specific symbol or character used to express the concept of number. Number is an abstract concept summarized by people through observation and practice. It can be used to describe the number, size and order of objects. Numbers are infinite, comparable and operable.
Numbers are specific symbols or characters that represent numbers. It is a tool to present digital concepts in a visual and readable way. Numbers usually consist of Arabic numerals (0-9), and can also be other characters or symbols. There is a close relationship between numbers. Numbers are abstract concepts, and numbers are concrete symbols or characters used to represent numbers. By using numbers, we can convey them to others in a visual and readable way.
Numbers and numbers play an important role in mathematics. Mathematics is a subject about the research and application of numbers. By using numbers and symbols, we can calculate, compare and express numbers, thus solving various practical problems. With the development of human civilization, different digital systems have been invented and adopted. Arabic numeral system (0-9) is the most commonly used numeral system in the world at present, which has the advantages of simplicity, readability and easy calculation.
Second, the skills of learning mathematics well
1, mathematics should master the theory by doing problems.
Although there are many formulas and theorems in mathematics that students need to recite and memorize, they can't memorize them by rote. They need to learn mathematical thinking, clarify mathematical thinking and solve problems with mathematical thinking, so they can naturally master theoretical knowledge in the process of doing problems.
The way to learn math well is to do more problems.
Although this kind of problem-solving can be understood as problem-solving tactics, it is not the same as problem-solving tactics, because it is almost impossible to learn anything without doing problems in mathematics, and it is impossible to improve scores, but it is also harmful to blindly do more problems without reflecting and summarizing. The most taboo of mathematics is that it seems that you can do it, but you get stuck when you do it yourself.