Neuschwander, Cindy.

Sir Cumference and the Viking's map / Cindy Neuschwander ; illustrated by Wayne Geehan. - New York : Scholastic, [2012] - 32 p. : col. ill., map ; 24 cm. - A math adventure .

"Xaxon Yellowbearyd was the fiercest Viking warrior of his time. Now a map to his hidden treasure lies in the hands of Radius and Per. Together the cousins must decode the strange numbered grid on the map--and figure out the secret of the Viking's X and Y axes. As bandits pursue them, Radius and Per track down clues and use coordinate geometry in their quest for "treasure of the greatest measure"."--Dust jacket flap.

ISBN: 9781338044850 (pbk.)

LCCN: 2010053468

Subjects--Topical Terms:
Coordinates
Mathematics
Geometry, Analytic
Map reading

Dewey Class. No.: 912.01/4