<img style="display:none" title="" src="https://scontent.xx.fbcdn.net/v/t15.0-10/s720x720/24544669_2442115432595991_7575124546844360704_n.jpg?oh=da45eaaea57a833c2c0c6642645beca4&oe=5AE32AA4" /></a><br>Two kids challenged 4 adults to a basic math face-off.[fb_vid id="2442114412596093"]