Quote Originally Posted by BobR View Post
^ Some of the common core math aimed at teaching children to round up or down to easier numbers in order to do math in their head is not an entirely bad thing.

The ability to do mental math is not only a sign of intelligence, it can prevent being short-changed and make any decision involving numbers easier. Picture yourself talking numbers with a car salesperson on a car lot, or any other salesperson without a pad and paper.

This is not to defend the nonsense that has invaded so much of Western Education as a whole, but just the ability to learn and practice mental math.
BobR,

In the 4th grade I did my multiplication tables, and we already did adding and subtracting before.

One example:



Please watch this that I posted above: