A clever and competent reader sent us a copy of her third grader’s math homework sheet. I am blown away by how completely stupid this method of subtraction is. Is it just me, or does this just totally complicate what would otherwise be a relatively simple calculation?
I mean, how is this helpful? Just freaking stack the 568 over the 293 and do NORMAL SUBTRACTION LIKE A NORMAL HUMAN BEING.
Common core. Madness.