#### Answer

$80000+700+70+4$

#### Work Step by Step

To write in expanded form write an addition expression where each addend is the value for each digit, using the digit and its place value.
$\ \ ten-thousands\ \ hundreds\ \ ones$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \overset\downarrow8\ \ \ \ \underset\uparrow0\ \ \ \ \overset\downarrow7\ \ \ \ \underset\uparrow7\ \ \ \ \overset\downarrow4$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ thousands\ \ \ \ \ \ tens$