Pre-Algebra Examples

$1$ , $3$ , $5$ , $10$ , $13$

Step 1

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

$\frac{1 + 3 + 5 + 10 + 13}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Add $1$ and $3$ .

$\frac{4 + 5 + 10 + 13}{5}$

Step 2.2

Add $4$ and $5$ .

$\frac{9 + 10 + 13}{5}$

Step 2.3

Add $9$ and $10$ .

$\frac{19 + 13}{5}$

Step 2.4

Add $19$ and $13$ .

$\frac{32}{5}$

Step 3

Divide.

$6.4$

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