Basic Math Examples

$3$ , $- 1$ , $- 5$ , $- 9$ , $- 13$

Step 1

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

$\frac{3 - 1 - 5 - 9 - 13}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Subtract $1$ from $3$ .

$\frac{2 - 5 - 9 - 13}{5}$

Step 2.2

Subtract $5$ from $2$ .

$\frac{- 3 - 9 - 13}{5}$

Step 2.3

Subtract $9$ from $- 3$ .

$\frac{- 12 - 13}{5}$

Step 2.4

Subtract $13$ from $- 12$ .

$\frac{- 25}{5}$

Step 3

Divide $- 25$ by $5$ .

$- 5$