This document provides examples of using numbers to count, compare, and write out quantities. It shows counting from 1 to 10, counting from 10 to 20, counting by 1s, 2s and 10s from 0 to 20. It also demonstrates comparing numbers using greater than, less than or equal signs. Finally, it writes out numbers like 21 and 115 in words and asks students to practice similar examples. The goal is to help students practice different skills involving numbers and quantities.