Click through to the full article to see one insanely complicated approach to subtraction that kids are forced to memorize.
And this is a great example of why education should not be controlled by faceless Washington bureaucrats. Our schools are being forced to teach according to academic theories and experiments, without regard to whether or not the children will actually learn anything.
I'm very glad that Virginia (for the moment anyway) is not one of the 43 states participating in this brain-dead Common Core curriculum. But I'm sure Washington will find some way to force their will on us. They just need to shred another few pages of the Constitution before they decide we have no rights whatsoever.