While I don't doubt some teacher at some school somewhere on america may have done something ill conceived, do you have a source? A quick Google found some com

While I don't doubt some teacher at some school somewhere on america may have done something ill conceived, do you have a source? A quick Google found some common core work on estimation which was multiple choice, clearly geared towards understanding magnitude. Teachers don't sit around all day thinking up ways to trick students and anger their parents.