10 to the 2nd power, also known as 10 squared, is calculated by multiplying 10 by itself. So, 10 x 10 equals 100. In mathematical notation, this is written as 102 = 100.
This concept of squaring a number is a fundamental principle in mathematics. It represents the area of a square with sides of length 10, which helps visualize the idea. In practical terms, understanding powers is useful in various fields, including science, engineering, and finance.