1, 1: in any case; Second: horizontal; Three: horizontal and vertical; Four: horizontal and vertical; Five: horizontal and vertical; Six: the distinction between horizontal and vertical; Seven: horizontal squat; Eight: horizontal squat; Nine: horizontal folding hook; Ten: Anyway.
2. The formal writing of these numbers is based on the writing rules and evolution history of Chinese characters.
It should be noted that the formal writing of these numbers may be different in some cases, for example, there may be different simplification methods in mathematical formulas or handwriting. In addition, due to the influence of different regions and cultures, the writing of numbers may be different.
Besides formal writing, we also need to pay attention to reading numbers. For example, "123" should be read as "123", "456" should be read as "456" and so on.
In mathematics, we also need to pay attention to the precision and rounding of numbers. When dealing with a large number of numbers, we need to master calculation methods, such as addition, subtraction, multiplication and division, exponent, logarithm and so on.
6. In a word, number is the basis of mathematics, which is very important for mathematics learning and application. We need to master the normal methods of writing, reading and calculating numbers, and pay attention to the accuracy and error handling of numbers.
7. Only in this way can we better understand and apply mathematics, solve practical problems and explore scientific phenomena.
Expand one's knowledge
1, the main difference between formal writing and informal writing of numbers lies in standardization and use.
2. The formal writing is written according to the standard format, which is normative and rigorous. Chinese characters are usually capitalized in formal writing, such as "one, two, three, four, five, six, seven, eight, nine and ten". This writing method originated from the ancient counting method in China and has its historical and cultural background.
3. Use informal writing in daily life, mostly for informal occasions and simple records, which is simple and practical.
4. Informal writing includes Arabic numerals "1, 2, 3, 4, 5, 6, 7, 8, 9, 10" and Chinese lowercase numerals "one, two, three, four, five, six, seven, eight, nine, ten". Informal writing is usually used for simple counting and recording, as well as some informal occasions and writing.
5. In a word, the difference between the formal writing and informal writing of numbers lies in the standardization and use. Formal writing is rigorous and suitable for formal occasions and official documents. Informal writing is simple and practical, suitable for informal occasions and simple records.