They are read in 1/10 1/00 1/000 ... etc or as tenths hundredths thousandths ... etc
round tu 2 digits aft desimal point
Yes, unless the decimal (not desimal!) terminates.
Individualy
0.369863
.294117647
0.6666 repeating
1.5
0.375
round up
0.03
0.2
Yes!