These simple math secrets and tricks will forever change how you look at the world of numbers.
Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends—and yourself—with incredible calculations...
Andrew Hacker's 2012 New York Times op-ed questioning the requirement of advanced mathematics in our schools instantly became one of the paper's most widely circulated articles. Why, he wondered, do we inflict a full menu of mathematics―algebra,...