Diggers in the EarthFront matterReading editionChapter navigation20 reading sectionsGo to chapterChoose a chapter…Front matterBook IIEVA MARCH TAPPAN, Ph.D.PREFACEIntroductory materialBOOK IIIIIIIIIVVVIVIIVIIIIXXXIFIRST YEAR IN NUMBERTHE EVERYDAY ARITHMETICSTHE RIVERSIDE READERSBeginning of this editionNext chapter →Book IIAll chapters and sections (20)Opening pagesFront matterBooks2Book 2 · Other sectionsEVA MARCH TAPPAN, Ph.D.PREFACEBook 2 · Opening pagesIntroductory materialBook 2 · Books2Book 2 · Chapters1234567891011Book 2 · Other sectionsFIRST YEAR IN NUMBERTHE EVERYDAY ARITHMETICSTHE RIVERSIDE READERSTHE INDUSTRIAL READERSBook II →