Like math? Like puzzles? Then meet Bojagi, a game created by David Radcliffe (@daveinstpaul). It looks simple enough. A grid has a few numbers in it. The goal is to draw a rectangle around each number ...

Adding some large numbers and aren't sure if you have the right answer? Here's an easy way to find out. Math can be tricky sometimes. Let's say you're adding several large numbers together, and you ...