Question

9,56.10¹³ + 1,67.10¹6

 

Answer 1

(9,56x10^13)+(1,67x10^16) = 1,68x10^16

Answer 2

$9,56.10^{18}+1,67.10^{16}=\\ \\ 9,56.18^{18}+0,0167.10^{18}=\\ \\ (9,56+0,0167).10^{18}=9,5767.10^{18}$