Simple operation formulas include basic four operations (addition, subtraction, multiplication and division), percentage calculation, square root operation, exponential operation and so on.

1. Basic four operations:

The basic four operations are the most basic and commonly used operation formulas, including addition, subtraction, multiplication and division. By using basic operation symbols (+,-,*,/) and numbers, simple arithmetic calculation can be performed.

2. Percentage calculation:

Percentage calculation refers to expressing a value as one percent or one hundred percent of its value. Often used to describe proportion, growth rate, discount, etc. The percentage can be calculated by multiplying the value to be calculated by 100 or dividing by 100.

3. Root operation:

Root operation refers to finding the square root of a number. A square root is a nonnegative solution that makes the square of the number after the square root equal to the original number. Common root operations include square root (quadratic root) and cubic root (cubic root).

4. Exponential operation:

Exponential operation refers to expressing a number in the form of exponent and solving the value of exponential expression. For example, the third power of 2 is expressed as 2 3, which is the cube of 2.

5. Square root operation:

Square root operation is a special case of square root operation, which refers to finding the square root of a number. The square root can be calculated by mathematical function (such as square root symbol √) or exponential operation.

6. Geometric operation:

Geometric operation refers to a series of simple formulas used in geometry, including calculating area, perimeter and volume. For example, the area of a rectangle can be calculated by multiplying its length by its width.

7. Proportional operation:

Proportional operation refers to establishing the proportional relationship between two related quantities, so as to calculate the value of unknown quantity. Proportional operation can be realized by cross product method and equal ratio method.

8. Approximate calculation:

Approximate calculation refers to simplifying a numerical value to a certain accuracy by rounding or truncation. Approximate calculation is often used to simplify complex numerical values, which is convenient for processing and understanding.

9. Hand calculation skills:

The skill of hand calculation means that the complicated operation process can be simplified by some skills and laws. For example, factorization, divisibility rule, decimal operation skills and so on can help simplify the operation.

abstract

Simple operation formulas include basic four operations, percentage operation, root operation, exponential operation, square root operation, geometric operation, proportional operation, approximate calculation and manual calculation skills. Mastering these operation methods and skills can make simple operations more efficient in mathematical calculation.