Basic Math Examples

90

$90$ ,

88

$88$ ,

100

$100$ ,

97

$97$ ,

90

$90$

Step 1

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

\frac{90 + 88 + 100 + 97 + 90}{5}

$\frac{90 + 88 + 100 + 97 + 90}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Add

90

$90$ and

88

$88$ .

\frac{178 + 100 + 97 + 90}{5}

$\frac{178 + 100 + 97 + 90}{5}$

Step 2.2

Add

178

$178$ and

100

$100$ .

\frac{278 + 97 + 90}{5}

$\frac{278 + 97 + 90}{5}$

Step 2.3

Add

278

$278$ and

97

$97$ .

\frac{375 + 90}{5}

$\frac{375 + 90}{5}$

Step 2.4

Add

375

$375$ and

90

$90$ .

\frac{465}{5}

$\frac{465}{5}$

\frac{465}{5}

$\frac{465}{5}$

Step 3

Divide

465

$465$ by

5

$5$ .

93

$93$