Fantastic Finger Multiplication Trick By Trygve BergJune 4, 2017March 3, 20181st Grade Math, 2nd & 3rd Grade Math Photo credit: Mya, The Full Time Kid Mya, the Full Time Kid, has put together this fantastic video showing a trick for other kids to learn an easy way to remember how to multiply by 9’s. Save Save TweetPin2Share2 Shares