Arithmetic/Introduction to Operations

From Wikibooks, open books for an open world
< Arithmetic
Jump to: navigation, search

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 is the total of two numbers. For example:


Subtraction is the opposite of addition, which is the taking away of one number from another. For example:


Multiplication is the adding of a number a certain number of times. So:



Division is the splitting of a number into a number of equal parts. For example: