[Editor’s Drawer] Mental arithmetic Adjust Share By Harper’s Staff, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Boys Education Football for children Humor Mental arithmetic Older women School sports United States More from Harper’s Staff Harper’s index Letters No one looks the same Adjust Share Close < Previous Issue | View All Issues | Next Issue > January 1921 < Previous Issue | View All Issues | Next Issue > Table of Contents Close