Sixty-one years later, they still loved each other.

Seventy-one students are in the classroom.

I need to find something.

This plant is a monoecious species.

Fifty-one people participated in the race.

Eighty-eight plus three equals eighty-one.

Ninety-one students are in the classroom.

You should try once.

I want to buy something.

I just couldn't solve this problem.