What is the result of multiplying 10² by 10³?

To multiply numbers in exponential form with the same base, you add the exponents. In this case, both numbers have a base of 10. When multiplying 10² (which is 10 raised to the power of 2) by 10³ (10 raised to the power of 3), you perform the following calculation with the exponents:

2 + 3 = 5.

Thus, the result of multiplying these two numbers is 10 raised to the power of 5, or 10⁵. This principle follows from the laws of exponents, which state that (a^m \times a^n = a^{m+n}). Therefore, the correct conclusion is that 10² multiplied by 10³ equals 10⁵.