Discusses how to measure the perimeters of various types of playing fields, such as football and soccer, by using addition and multiplication. Series: PowerMath Interest Level: 3-6 Reading Level: 5.0 ATOS Book Level: 4.8 AR Interest Level: MG AR Points: .5 AR Quiz: 70521EN Lexile: 880 DRA: 34 Guided Reading Level: O.