$\"\"$

\

The expression is $\"\"$ $\"\"$ of 50.

\

Than $\"\"$ .

\

The expression can be $\"\"$ of 50.

\

$\"\"$

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Divide: $\"\"$ ) $\"\"$

\

10 is 20 $\"\"$ of 50.