This Fluency Activity is a part of the Lesson 14, Unit 1, Grade 3. This activity builds fluency with multiplication and division using units of 3. It works toward students' fluency within 100. See Lesson 2 for the directions for administering a Sprint. Instead of movement exercises between Sprints, have students: Count by twos to 20 forward and backward, count by fours to 40 forward and backward.