Basic Math Examples

$393$ , $399$ , $402$ , $402$ , $407$ , $410$ , $424$ , $425$ , $428$

Step 1

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

$\frac{393 + 399 + 402 + 402 + 407 + 410 + 424 + 425 + 428}{9}$

Step 2

Simplify the numerator.

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Step 2.1

Add $393$ and $399$ .

$\frac{792 + 402 + 402 + 407 + 410 + 424 + 425 + 428}{9}$

Step 2.2

Add $792$ and $402$ .

$\frac{1194 + 402 + 407 + 410 + 424 + 425 + 428}{9}$

Step 2.3

Add $1194$ and $402$ .

$\frac{1596 + 407 + 410 + 424 + 425 + 428}{9}$

Step 2.4

Add $1596$ and $407$ .

$\frac{2003 + 410 + 424 + 425 + 428}{9}$

Step 2.5

Add $2003$ and $410$ .

$\frac{2413 + 424 + 425 + 428}{9}$

Step 2.6

Add $2413$ and $424$ .

$\frac{2837 + 425 + 428}{9}$

Step 2.7

Add $2837$ and $425$ .

$\frac{3262 + 428}{9}$

Step 2.8

Add $3262$ and $428$ .

$\frac{3690}{9}$

Step 3

Divide $3690$ by $9$ .

$410$