Ha! They wouldn't have a clue, seriously. I'm not trying to be mean or bitter, but this current generation I'm dealing with is completely clueless. Simple things that you and I take for granted are beyond them. Case in point: reading a freaking ruler... Completely foreign to them. They know it's a ruler, they know it's used for measuring, they even know the little marks mean something, what exactly? Completely clueless. Really. As an art instructor we measure quite often, and these last few years I spend copious amounts of time teaching fundamentals instead of focused areas of design.
Not all, but most students simply can not use a a ruler. I use analogy of the dollar (quarters, halves) and reach some, but if we delve into eighths, or 16ths, or God forbid add fractions they are screwed. One student was measuring a mat for a photo, she was supposed to find the center, I showed her over and over. Walked her through it, and asked her what half of 10 was, she didn't know. I said don't be embarrassed, get out a piece of paper and see if you can figure it out. She stared at the paper for quite some time. I asked what was wrong, she said she didn't know how to do it. I said try 10 divided by 2, she stared at the paper for a long time. (I absolutely REFUSE to tell them, after all they're here to learn!) Finally, I begin to feel sorry for her, and ask her if her phone has a calculator. She dug it out and stared at it again for several minutes... I asked what was the deal now. She said she didn't know how to do it... Finally (with direction) she arrived at the correct answer. Wow. Then I asked her to find the center of the vertical measurement, "Ok, good, now what's half of 7 and a half?" She looked at me with a super wide Cheshire Cat smile and said "Nice try Sam, you're trying to trick me!" I was confused, and asked for clarification. She said completely sincere and honest "There is no half of seven and half, it's mathematically impossible."
Digital zombies.