← Arithmetic

How to solve

Add every value, then divide the total by how many values there are.

Steps

  1. Add all the numbers in the list.
  2. Count the values.
  3. Divide the sum by the count.

Example

Mean of 7, 12, 9, 12?

  1. Sum: 7 + 12 + 9 + 12 = 40.
  2. Four values: 40 ÷ 4 = 10.

Answer: 10

Loading drills…