Question

How do we say these?1635,1840,1991,2008,2012,2017.

Answer 1

1635  one thousand six hundred thirty-five 
1840  one thousand eight hundred forty 
1991 one thousand nine hundred ninety-one
2008  two thousand eight 
         twenty oh eight
2012 two thousand twelve 
        twenty twelve
2017 two thousand seventeen 
        twenty seventeen