Exercises III: ordinal and cardinal numbers

"How old are you?" "I'm ____

"How many brothers do you have?" " _____ ."

I got it for _____ dollars.

Queen Elizabeth _____ married Prince Philip, Duke of Edinburgh.

'Where do you live?' 'On the _____ floor.'

'How many sweets have you had?' 'This is my _____ .'

The _____ World War lasted four years.

The book has ten units. I'm still on the _____ one.

My telephone number has _____ digits.

_____ is the number of floors my house has.