This Fluency Activity is a part of the Lesson 10, Unit 4, Grade 1. This fluency activity was conducted as a teacher-directed fluency in the previous lesson. Today, students practice in pairs and compare their numbers using inequality symbols. Students work in pairs. Each student writes a number from 0 to 40 in his place value chart but does not show his partner. Partners then can either tell which digit is in each place or give addition or subtraction clues about the digits.