Answer
$618.00717$
Work Step by Step
489.76 + 0.9993 + 38 + 8.55087 + 80.697
To find the sum, first we will rewrite the decimal numbers in columns. We need to align decimal points first and add zeroes as placeholders for ease in calculation as following-
$489.76000$
$000.99930$
$038.00000$
$008.55087$
$080.69700$ (+)
_________
$618.00717$