Basic Math Examples

find the average $54$ , $58$ , $78$ , $42$ , $86$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{54 + 58 + 78 + 42 + 86}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Add $54$ and $58$ .

$\frac{112 + 78 + 42 + 86}{5}$

Step 2.2

Add $112$ and $78$ .

$\frac{190 + 42 + 86}{5}$

Step 2.3

Add $190$ and $42$ .

$\frac{232 + 86}{5}$

Step 2.4

Add $232$ and $86$ .

$\frac{318}{5}$

Step 3

Divide.

$63.6$