Question

Find the difference between (1.3 × 108) and (3.8 × 107). Write the final answer in scientific notation.

−2.5 × 101
2.5 × 10−1
9.2 × 107
9.2 × 108

Answer 1

9.2 × 10^7

Explanation:

(1.3 × 10^8) - (3.8 × 10^7) =

= (1.3 × 10^8) - (0.38 × 10^8)

= 0.92 × 10^8

= 9.2 × 10^7