Question

The length of your classroom is about 3.5 x 10^2 inches. If the hallway is ten times as long as the classroom, what is the length of the hallway, expressed in scientific notation?

Answer 1

3.5x10^3

Explanation:

3.5x10^2 = 350

350x10 = 3500

3500 = 3.5x10^3