Common Core Math is Not the Enemy
Brett Berry
3.4K166

Which works just fine if I have a couple minutes and a pencil and paper.

I always thought I suck at “mental math”, but this one was really easy, and took about 10 seconds. Maybe less.

If math was taught like this, however… maybe I'd still be at university.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.