That reminds me of numerous occasions when I'll pay a clerk with a large bill plus some change (just to get that extra metal outta my pocket). Like for a bill of $13.83, I toss out a $20 and a nickle and 3 pennies. I'm expecting $6.25 in change, a $5 + $1 + a quarter. Easier for both of us.
Instead, I get this blanked, crazed look. The calculators come out, buttons frantically punched, sweating, a look of panic, a call to the manager. Eventually, after a conference with the science lab at Cern, I get my change.
I guess they don't teach math much anymore.
Now I find out that the schools are discontinuing teaching cursive handwriting.
Guess what guys, we'll soon have our own secret 'geezer' code...