math refresher soldiers mathematics hand von author stated (1 Ergebnisse)

Paperback. Zustand: Fair. Revised Edition. 32 pages. "Dedicated to the needs of the men in the [WWII] service" - title page. Given the urgent wartime conditions in which and for which this work was published, it is hard to imagine that it does not represent a most efficient way to teach the basics of math. Contents include: Fractions, Decimals, Percentage, Square Root, Ratio and Proportion, Indirect Proportion, and Formulas, plus sample and test question. Unmarked with average wear. A sound vintage copy. Size: 12mo - over 6¾" - 7¾" tall.