Ingenious Mathematical Problems and Methods, , Dover Publications, Louis A. Graham,Popular and recreational mathematics,Popular science, math; science; puzzles; solving methods; applied mathematics; solutions; engineering; games; recreation; the graham dial; math problems; number theory; geometry; logic; modes of solution; assessments; math games; algebra; calculus; competition; collection; problem solving; recreational math; word problems; math problems,, Dover Math Games & Puzzles, United States, en-UShttps://www.doverpublications.commath; science; puzzles; solving methods; applied mathematics; solutions; engineering; games; recreation; the graham dial; math problems; number theory; geometry; logic; modes of solution; assessments; math games; algebra; calculus; competition; collection; problem solving; recreational math; word problems; math problems, [BLURB],[CITY],New York,books, ebooks, biblet, Book2look