Basic Math Examples

128

$128$ ,

130

$130$ ,

139

$139$ ,

120

$120$ ,

133

$133$ ,

120

$120$ ,

128

$128$ ,

126

$126$

Step 1

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

\frac{128 + 130 + 139 + 120 + 133 + 120 + 128 + 126}{8}

$\frac{128 + 130 + 139 + 120 + 133 + 120 + 128 + 126}{8}$

Step 2

Simplify the numerator.

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Step 2.1

Add

128

$128$ and

130

$130$ .

\frac{258 + 139 + 120 + 133 + 120 + 128 + 126}{8}

$\frac{258 + 139 + 120 + 133 + 120 + 128 + 126}{8}$

Step 2.2

Add

258

$258$ and

139

$139$ .

\frac{397 + 120 + 133 + 120 + 128 + 126}{8}

$\frac{397 + 120 + 133 + 120 + 128 + 126}{8}$

Step 2.3

Add

397

$397$ and

120

$120$ .

\frac{517 + 133 + 120 + 128 + 126}{8}

$\frac{517 + 133 + 120 + 128 + 126}{8}$

Step 2.4

Add

517

$517$ and

133

$133$ .

\frac{650 + 120 + 128 + 126}{8}

$\frac{650 + 120 + 128 + 126}{8}$

Step 2.5

Add

650

$650$ and

120

$120$ .

\frac{770 + 128 + 126}{8}

$\frac{770 + 128 + 126}{8}$

Step 2.6

Add

770

$770$ and

128

$128$ .

\frac{898 + 126}{8}

$\frac{898 + 126}{8}$

Step 2.7

Add

898

$898$ and

126

$126$ .

\frac{1024}{8}

$\frac{1024}{8}$

\frac{1024}{8}

$\frac{1024}{8}$

Step 3

Divide

1024

$1024$ by

8

$8$ .

128

$128$