Item Analysis - ECE 270 Lab Quiz 11 - Spring 2019 1. ( 85.1%) SM converted to radix notation... 2. ( 90.0%) DR converted to radix notation... 3. ( 74.0%) Extension of radix number... 4. ( 75.8%) Radix addition... 5. ( 85.5%) Radix subtraction... Overall average: 82.08%