Answer
4.862
Work Step by Step
Align the decimals. Add zeroes to the right without changing the value. Add or subtract as you would a whole number, keeping the decimal in its original column.
$\ \ \ 0.370$
$\underline{+4.500}$
$\ \ \ 4.870$
$\underline{-0.008}$
$\ \ \ 4.862$
