99% Of People Don’t Know This Math Secret

This little trick makes math calculations much easier. Sources/references (March 2019) Updated reference June 2021 Pink Pencil Math did a video on TikTok which has over 18 million views. Definitely watch it! @pinkpencilmath/video/6933371157831798017 Subscribe: Playlist to watch all videos on MindYourDecisions: This is the only channel to feature math topics sugges