debug.print 183 - 173.55

i have visual basig 6

if i type in the debug window it gives me a strange result

debug.print 183 - 173.55
9.44999999999999

why this result instead of 9.45

the same is happening if i do
a = 183
b = 173.55
c = a-b
debug.print c

if i do 183 - 174.55 or 183 - 180.55 the same strange thing happen. ( with
..449999999 instead of .45 )why and how to avoid this?
if you try this with windows standard calculator it gives the right answer.

ty


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