Basic Math Examples

$120$ , $130$

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

$\frac{120 + 130}{2}$

Cancel the common factor of $120 + 130$ and $2$ .

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Factor $2$ out of $120$ .

$\frac{2 \cdot 60 + 130}{2}$

Factor $2$ out of $130$ .

$\frac{2 \cdot 60 + 2 \cdot 65}{2}$

Factor $2$ out of $2 \cdot 60 + 2 \cdot 65$ .

$\frac{2 \cdot (60 + 65)}{2}$

Cancel the common factors.

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Factor $2$ out of $2$ .

$\frac{2 \cdot (60 + 65)}{2 (1)}$

Cancel the common factor.

$\frac{2 \cdot (60 + 65)}{2 \cdot 1}$

Rewrite the expression.

$\frac{60 + 65}{1}$

Divide $60 + 65$ by $1$ .

$60 + 65$

Add $60$ and $65$ .

$125$

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