teacher
(teacher)
11
It is sadly amazing GOOSE. I too see kids & young adults that have no earthly idea how to do simple addition & subtraction. Forget about division & multiplication, that would be akin to a space shuttle launch for these individuals.
Might as well ask them to plan a Moon Landing than figure a percentage. Yes, I am serious…… 
Thank goodness it is not the majority of kids (I don't think)…. but it is way to many that are completely lacking these basic skills. Very sad….
And that is just in the realm of simple math……