Hello Calculator

One day, while my mother was sorting things out at home, she unearthed a handful of old calculators (should be expected since 4 out of 5 of us enroled in engineering courses).

With supervision, we decided to let Matt have a look at these.

He looks like he wanted to ask "Ma, why are you taking my pictures?" here.

"WHY?"

"Oh, bother. Gotta figure out how to crack open this one"

" Aha, numbers."

"Mama over there has something like this too."

And he actually said "Hello, hello, Papa" here. Boy, was I caught by surprise!