This Fluency Practice is a part of the Lesson 15, Unit 2, Grade 7. Before beginning, tell students that they may not skip over questions and that they must move in order. Allow students one minute to complete Side A. After one minute, discuss the answers. Before beginning Side B, elicit strategies from those students who were able to accurately complete the most problems on Side A. Administer Side B in the same fashion, and review the answers.