Question

Find the simplified form of the expression. Give your answer in scientific notation.
(9 x 10^ 5)(6 x 10^ -7)

Answer 1

9 x 10⁵ = 900000
6 x 10⁻⁷ = 0.0000006

900,000 x 0.0000006 = 0.54

0.54 in scientific notation is = 5.4 x 10⁻¹

OR Drop the number of zeros that cancel each other out.

9 x 0.06 = 0.54