Question

Write the answer in scientific notation.
5 x 108 - 3.4 x 108

Answer 1

172.8

Explanation:

5 x 108 = 540

3.4 x 108 = 367.2

540 - 367.2 = 172.8

Answer 2

`5 * 108 - 3.4 * 108`

lets take 108 as X

`5x - 3.4x = 2x \\ \\ 1.6x = 108 * 1.6\\ = 172.8`