Mean,Mode,Median and Range

This is the imformation I've gathered this past week about mean,mode,median and range -

Mean -

You have to add all of the numbers together and then divide it by how many numbers are there. 

Median - 

Rearrange  the numbers from smallest to biggest then you see if both sides are even. If there are two numbers in the middle, I have to add them and then divide them by two. 

Mode - 

You look at the most repeated number 

Range- 

You takeaway the smallest number from the biggest number