Arithmetic/Introduction to Operations

There are four basic operators, which are used to work with numbers for uses besides counting. They are:
 * $$+$$ addition
 * $$-$$ subtraction
 * $$\times$$ multiplication (The symbols * and ⋅ are also used to multiply)
 * $$\div$$ division (The symbol / is also used to divide)

Addition
Addition is the total of two numbers. For example:
 * $$1 + 2 = 3$$

Subtraction
Subtraction is the opposite of addition, which is the taking away of one number from another. For example:
 * $$2 - 1 = 1 $$

Multiplication
Multiplication is the adding of a number a certain number of times. So:
 * $$2 * 1 = 2 $$
 * $$2 * 2 = 2 + 2 = 4 $$
 * $$ 2 * 3 = 2 + 2 + 2 = 6 $$ etc.

Division
Division is the splitting of a number into a number of equal parts. For example:
 * $$ 6 / 2 = 3$$