Mathematics is an important subject in ancient science in China, with a long history and brilliant achievements. Take a look at this second-grade math handwritten newspaper with me.

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Mathematical system formation

Qin and Han dynasties were the rising period of feudal society, with rapid economic and cultural development. The ancient mathematical system of China was formed in this period, and its main symbol was that arithmetic became a specialized subject, and the emergence of mathematical works represented by Nine Chapters of Arithmetic.

Nine Chapters Arithmetic is a summary of the development of mathematics during the establishment and consolidation of feudal society in the Warring States, Qin and Han Dynasties. As far as its mathematical achievements are concerned, it is a world-famous mathematical work. For example, the operation of quartering, the three-rate method in modern western countries, the numerical solution of square root and square root including quadratic equation, the double solution of surplus and deficiency, various formulas of area and volume, the solution of linear equations, the law of addition and subtraction of positive and negative numbers, and the pythagorean solution, especially the solution of pythagorean theorem and pythagorean number, are all at a very high level. Among them, the solution of equations and the addition and subtraction of positive and negative numbers are far ahead in the development of mathematics in the world. As far as its characteristics are concerned, it forms an independent system centered on calculation, which is completely different from ancient Greek mathematics.

"Nine Chapters Arithmetic" has several remarkable characteristics: it adopts the form of mathematical problem sets divided into chapters according to categories; Formulas are all developed from counting method; Mainly arithmetic and algebra, rarely involving graphic properties; Attach importance to application and lack of theoretical explanation.

Qin and Han Dynasties emphasized the application of mathematics. Nine Chapters of Arithmetic was written in the early years of the Eastern Han Dynasty, which excluded the discussion on the definition and logic of nouns by famous scholars and Mohists in the Warring States period, and focused on mathematical problems and their solutions closely combined with production and life at that time.

Nine Chapters Arithmetic spread to Korea and Japan in Sui and Tang Dynasties, and became the mathematics textbook of these countries at that time. Some of its achievements, such as decimal numerical system, modern skills and surplus skills, have also spread to India and * * *, and through India and * * * to Europe, which has promoted the development of world mathematics.

Design of second-grade mathematics handwritten newspaper

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Commonly used quantitative relations

1, number of copies × number of copies = total number of copies/number of copies = total number of copies/number of copies = number of copies.

2. 1 multiple× multiple = multiple1multiple = multiple/multiple = 1 multiple

3. Speed × time = distance/speed = time/distance/time = speed

4. Unit price × quantity = total price ÷ unit price = total quantity ÷ quantity = unit price

5. Work efficiency × working hours = total workload ÷ work efficiency = working hours ÷ total workload ÷ working hours = work efficiency.

6. Appendix+Appendix = sum, and-one addend = another addend.

7. Minus-Minus = Minus-Minus = Minus+Minus = Minus

8. Factor × factor = product ÷ one factor = another factor.

9. Dividend = quotient dividend = divisor quotient × divisor = dividend