A power of 10 is a power with a base of 10.
The powers of 10 are used to facilitate the work with large numbers.
Exponents are numbers that are written as a superscript. Example: 10³
A positive exponent means repeated multiplication.
10³ = 10 × 10 × 10 = 1000
Any number (excluding zero) raised to the zero exponent is always one.