Just when I thought my math skillz could not get dumbified any comes a “tip guide” on a recent receipt of mine. I received the bill, and as usual, tried calculating what 18% was, but while calculating this mind exercise I noticed on the bottom of the bill was a “tip guide” that already did the calculations at 10, 15, and 20% of the bills cost. As much as I love this little added service, I worry that I’ll become dumb with math, much like what spell-check has done to my mad spelling skillz as I mentioned in my post about dumbifying tech.