When you say numbers when is appropriate to say the word and?
When you have a .
It is best not to use and, although some do for the last one or
two digits, like, say 1001 some say one thousand and one or for
1011 one thousand and eleven. But prefreed is one thousand one, or
one thousand eleven.
When you have decimal, as in 1001.93, you can add and after the
decimal as in one thousand one and 93 one hundredths, or in the
case of money one thousand one dollars and 93 cents