School Math Fundamentals
Easy to Understand Explanations of the Math Rules You Learn in SchoolBook - 2008
Few people understand why a negative number multiplied by a negative number is a positive number. This book explains the reason for this rule and many of the other fundamental math rules that students learn in school so that they can confidently do their calculations with real understanding.
Publisher: [S.l. : Alpine Pub.?], c2008.
Characteristics: 142 p. : ill. ; 23 cm.