How do you do the Britney Spears joke with the calculator?

Answer 1

Britney Spears weighed 69lbs (press 69)

She thought she weighes 2 2 2 much (press 222)

So she went to the doctor on 51st Street (press 51)

to get an x-ray (press x)

He messed up so it took eight hours (press 8)

and it left her....... (press =)

Answer 2

Oh honey, it's as easy as pie! Just type in the numbers "3+3" and hit equals, then turn the calculator upside down to reveal "7734." Voilà, you've got yourself a classic Britney Spears joke. Now go ahead and impress your friends with your calculator comedy skills!