We can quickly add or multiply groups of 25 by relating them to 25 cent coins, quarters.
4 quarters = $1.00 as 4 X 25 = 100

Mental Math Tricks Playlist
   • Mental Math Tricks, Group Compatible ...  

This video and its contents are the property of JoAnn's School and
is protected under U.S. copyright law. To avoid a copyright strike,
do not reupload them or any part of them, to your own channel. Do not reproduce,
distribute, transmit, broadcast, display, sell, license, or otherwise exploit any
content for any other purposes.

FOLLOW ME:
YouTube    / joannsschool  
MINDS https://www.Minds.com/joannsschool
Odysee https://www.odysee.com/JoAnnsSchool:2
Facebook   / joannsschool  

SUPPORT MY WORK:
With a YOUTUBE SUPER THANKS which directly supports my channel
or
PATREON (monthly)   / joannsschool  
TEESPRING (buy stuff) https://teespring.com/stores/joannss...
PAYPAL (one time) https://www.paypal.me/JoAnnsSchool