Recalculating The 8th-Grade Algebra Rush - washingtonpost.com

Recalculating The 8th-Grade Algebra Rush - washingtonpost.com

I just don't get it. My fifth grade class in McIntosh, S.D. (on the Standing Rock Sioux reservation---at the time fourth poorest county in the nation) were making this computation along with some significantly harder. Most of us figured out this easy one in our head. What has changed? I'm serious---I'd like to know. Jim