Math Is Hard

The Nana was visiting last weekend, and while she was here, we decided to watch Walk the Line, the Johnny Cash biopic. In the opening of the film, it reads, "Folsom Prison, 1968."

Me: 1968! That's the year I was born!
Adam: Yes it is.
Me: That was forty years ago, you know.
Adam: Yes it was.

A couple minutes in, the screen reads, "Someplace, Arkansas, 1944."

The Nana: 1944. I was one years old.
Me: What?
The Nana: I was one years old. You were talking about how old you were and now I'm telling you how old I was.
Me: Um, but you were born in 1945.
The Nana: Oh. [pause] I guess I did that backwards.

I guess you can say I come by my math skills honestly.