Ten percent equals ten percent, and ten percent is one tenth. One tenth is 0. 1 when converted into decimal, and 0. 1 times 100% is 10%. Ten percent is spoken language, which is commonly used in daily life, and 10% is written language. Fraction: It means that one number is a few tenths of another number, collectively called "fraction". "A few percent" means a few tenths, that is, dozens of percent, and a few percent means dozens of percent. 20% is two ten thousandths, that is, 20%, and 35% is 3.5 ten thousandths, that is, 35%.

Method of calculating numbers

When calculating a number, there are two numbers, A and B. Find the ratio of B and A and turn the ratio into a pure decimal. Then the pure decimal is called the number from B to A. The first digit after the decimal point is called "Cheng" or "Minute", and the second digit after the decimal point is called "Li".

For example, if the planned grain output is 50,000 Jin and the actual grain output is 1 10,000 Jin, then the grain yield increase percentage is 1.275 = 0.2, that is, the grain yield is increased by 20%. For example, grain output increased by "20%". "20%" means two tenths, which means that the grain output has increased by 20%.

Mutual transformation of several numbers and other numbers

Methods: The score X 10= Chengdu/10 = decimal (Chengdu divided by 10 equals decimal) and Chengdu X 10= percentage.

per cent

Percentage, also known as percentage or percentage, is a way to express the numerical value of proportion, ratio or fraction. Percentages are usually not written in the form of fractions, and fractions cannot be followed by units, but are indicated by adding a percent sign "%"after the original molecules.

For example: 82% stands for 82%, or 82/ 100, 0.82; Ninety percent, ninety percent; 108.5%, 108.5%; For example, "70%" and "70%" mean 70/ 100 or 70% or 0.7 ... percentage is widely used in industrial and agricultural production, science and technology and various experiments, especially in investigation, statistics, analysis and comparison.

More than 200 years ago, the Swiss mathematician Euler said in his book General Arithmetic that it was impossible to divide a 7-meter-long rope into three equal parts, because there was no suitable number to represent it. If we divide it into three equal parts, each part is 7/3 meters, that is a new number, which we call a fraction. Then, people invented the percentage based on the score and 100.