how do you read in the 1900s

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hello,

I would like to ask how does one read the following phrases:

in the 1900s

and

in the 1910s

thank you

2

In the nineteen-hundreds

In the nineteen-tens
or
In the nineteen-hundred and tens
(It sounds rather strange to have such an apparent discrepancy in the number, but that’s English for you!)

3

and what about

in the 2000s (twenty-hundreds?)

and

[i]in the 2010s /i

thank you