1. The document discusses properties and methods for finding square roots of numbers. 2. It outlines 4 properties of square numbers: numbers ending in 2, 3, 7, or 8 are never perfect squares; squares of even numbers are even and odd numbers are odd; squares ending in 0 also end in 0 and ending in 5 also end in 5; squares ending in 1 have the original number ending in 1 or 9. 3. Three methods for finding square roots are described: repeated subtraction, prime factorization, and long division.