If you correctly recall the elementary trick for order of operations, solving this problem should be a breeze.

A seemingly simple math problem has gone viral this week, leaving people totally stumped on social media. The equation in questions is: 15 - 15 × 4 ÷ 2 = ? At first glance, it looks like a basic grade ...

The viral math problem has X users stumped - but the answer comes from lessons learned in fifth or sixth grade. The best way ...