When both your parents are engineers...

... you get toys like this. An abacus - an ancient Chinese calculating tool used to solve arithmetic problems. Let's see what Emma thinks...

"What in the world is this thing!?!"

"An ABACUS!!! Oh cool!"

"Ok, Mommy, ask me a math question."

Ok, Emma, what is 123,456 + 876,544?

"Mommy that's a tough one! Ok, let me think about this."

"Move this over here... carry the one... slide this back over here..."

"I figured it out! Have you?"

"It's 1 MILLION... see! This is so easy, I can do it with my eyes closed!