maths

In maths I am learning .....

Mode: Mode means the number used most often. 1,2,2,3,6,7=2 

Mean: Add all the numbers together .Then divide by how many numbers there are.
1+2+2+3+6+7=21
21÷6=3.5

Median: The number in the middle.
1,2,2,3,6,7,7=3
If there are 2 numbers in the middle, add the numbers together then divide by 2.
1,2,2,3,6,7
2+3=5
5÷2=2.5
Range:Take the largest number the takeaway the smallest number .
7-1=6