Basic Math Examples

$- 7$ , $6$ , $- 1$ , $11$ , $- 8$ , $- 9$ , $0$ , $- 8$

Step 1

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

$\frac{- 7 + 6 - 1 + 11 - 8 - 9 + 0 - 8}{8}$

Step 2

Simplify the numerator.

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Step 2.1

Add $- 7$ and $6$ .

$\frac{- 1 - 1 + 11 - 8 - 9 + 0 - 8}{8}$

Step 2.2

Subtract $1$ from $- 1$ .

$\frac{- 2 + 11 - 8 - 9 + 0 - 8}{8}$

Step 2.3

Add $- 2$ and $11$ .

$\frac{9 - 8 - 9 + 0 - 8}{8}$

Step 2.4

Subtract $8$ from $9$ .

$\frac{1 - 9 + 0 - 8}{8}$

Step 2.5

Subtract $9$ from $1$ .

$\frac{- 8 + 0 - 8}{8}$

Step 2.6

Add $- 8$ and $0$ .

$\frac{- 8 - 8}{8}$

Step 2.7

Subtract $8$ from $- 8$ .

$\frac{- 16}{8}$

Step 3

Divide $- 16$ by $8$ .

$- 2$