Exponent is the number of times a number is multiplied by itself. Exponents are written as xy; where x is the number and y is the exponent or power.
Example: 2 * 2 * 2 * 2 * 2 = 25
Learn more about exponents.
The square of a number is that number raised to a power of 2. In other words when we multiply a number by itself we get the square of the number. Example 2 * 2 = 4
The square root of a number x is the the value which when multiplied by itself gives the number x. In the above example 2 is the square root of 4.
Learn about squares and square roots and different ways to calculate them.
SmartTest on Powers
SmartTest on Squares and Square Roots
SmartTest on Cubes and Cube Roots