Question

Why is 0.8 and 0.80 named the same?

Answer 1

Because 0.8 is only 10 away from 0.80

Answer 2

0.8 and 0.80 are named the same because both of them numbers have an 8 in the tenths place and a zero in the hundredths place. No matter how many zeros you add on to the end of the decimal, it does not change its value.