I show you how to add numbers mentally by rounding them up to easy and compatible numbers, then subtracting the excess amount. Mental addition is useful when shopping, or when we just need a quick sum.

Mental Math Tricks, Group Compatible Numbers to Add
   • Mental Math Tricks, Group Compatible ...  

Mental Math Tricks, Count Up by Place Value to Add
   • Mental Math Tricks, Count Up by Place...  

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