Multiply and Divide Numbers in Scientific Notation

Question 1: Multiply (4.5 x 10⁴) (2 x 10⁵). Write your answer in scientific notation.

Question 2: Multiply (6.9 x 10⁵)(3.2 x 10^-7). Write your answer in scientific notation.

Question 3: Divide the following, (6.8×10⁵)/(2×10²). Write your answer in scientific notation.

Question 4: Divide the following, (-5×10⁵)/(10×10⁶). Write your answer in standard form.

Question 5: One city has a population of 3 x 10⁵ and a small town has a population of 1.5 x 10³. How many times greater is the population of the city than the town? Write your answer in standard form.