2 quick tips for faster mental math

You probably do mental math every day—learn to do it faster with these simple tips!

$Illustration of Junior peeking through a grid of squares and looking at his frog$

Jun 11 Cassie Freeman, Ph.D.

$Two illustrations, one of Zari looking perplexed and the second of an Egyptian-style pyramid$

Nov 21 Maria Gabriela Jones

Sep 8 Cindy Blanco, Ph.D.