Arithmetic Mean (Calculate)

Free interactive math game: Arithmetic Mean — Calculate. Part of the Statistics category on MathKite.

Example problems

Taken from the generator that powers this exercise. A fresh set appears every time the page is opened, and the printable worksheet holds ten of them.

  1. Numbers: 13, 2, 1, 2, 3, 3
  2. Numbers: 11, 9, 6, 10, 4
  3. Calculate arithmetic mean: Numbers: 10, 6, 8
  4. Numbers: 10, 1, 5, 2, 8, 10

About this exercise

The mean, or ordinary average, of a set of numbers.

How to solve it

Add all the values together and divide by how many there are.

Worked example

For 4, 6 and 8 the total is 18, and 18 : 3 = 6.

Common mistake

Dividing by the wrong count. Every value counts, including any repeats.