Mental Math - Adding
Page 1 of 1
Mental Math - Adding
by Danny Wed Mar 18, 2015 3:08 pm
Adding
Adding is the easiest thing to do in mental math.
When adding, you should always try to get your numbers to end with zero in your head.
In 245+178, one way to do this is to add 45 and 78, sum it up and add it to the hundreds.
Second way to do this is to add 22 to 178 in order to get 200, subtract 22 from 45 and add it to 200.
Adding is the easiest thing to do in mental math.
When adding, you should always try to get your numbers to end with zero in your head.
In 245+178, one way to do this is to add 45 and 78, sum it up and add it to the hundreds.
Second way to do this is to add 22 to 178 in order to get 200, subtract 22 from 45 and add it to 200.
Danny- Admin
- Posts : 44
Points : 127
Kudos : 0
Join date : 2014-10-09 -
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum|
|
|