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Arithmetic/Introduction to Operations
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There are four basic operators, which are used to work with numbers for uses besides counting. They are:
addition
subtraction
multiplication (The symbols * and ⋅ are also used to multiply)
division (The symbol / is also used to divide)
Addition
Addition is the total of two numbers. For example:
Subtraction
Subtraction is the opposite of addition, which is the taking away of one number from another. For example:
Multiplication
Multiplication is the adding of a number a certain number of times. So:
etc.
Division
Division is the splitting of a number into a number of equal parts. For example: