Question

Which of the following expressions is not correctly written in scientific notation?

A.1 × 10 4
B.9 × 10 2
C.10 × 10 7
D.5 × 10 3

Answer 1

C.10 × 10 7

Explanation:

Answer 2

a. 1 × 10 4

Explanation:

Anything's answer when multiplied by 1 is always the number given itself. So, there is no need to write "1 ×"