convert to decimal form
4/500=0.008
scientific nottationis
(number greaterthan or equal to 1 and less than 10) times (10^x (x=number of places moved))
0.008
make number less than 10 and moer than 1
8 times 0.001
0.001=10^-3 (3 places moved)
8 times 10^-3 is the answer
