Mean

Mean is a type of average. A mean is when you add up all the numbers in a group and then divide the total by how many numbers there are. To find the mean of a group of numbers, you add them all together and then divide the amount by how many numbers there are. For example, if you have 3, 7 and 20, you would add 3, 7 and 20 together to get 30. Then, you would divide 30 by 3 (because there are 3 numbers) and get 10. So, 10 is the mean of 3, 7, and 20.