Three elderly ladies were at the doctor for a cognitive reasoning test.

The doctor says to the first gal, What is three times three? 297, was her prompt reply. Ummm humm, says the doc.

The doctor says to the second lady, Its your turn now. What is three times three? Friday, replies the second lady. Ummm humm…

Then the doc says to the third, Okay, mam, your turn. Whats three times three?

Nine, she says. Thats wonderful! says the doc. Tell me, how did you get that?

Simple, she says, beaming… I subtracted 297 from Friday!