Lesson 20. Unit 5. Grade 2 EngageNY
This Fluency Activity is a part of the Lesson 20, Unit 5, Grade 2. During Topic C and for the remainder of the year, each day's fluency includes an opportunity for review and mastery of the sums and differences with totals through 20 by means of the Core Fluency Practice Sets or Sprints. In Lesson 14, Practice Sets are provided, and the process is explained in detail.