Question

1+2+15+125854+12141451-6

Answer 1

$\Large\mathsf\displaystyle{}1 + 2 + 15 + 125854 + 12141451 - 6 \\ \Large\mathsf\displaystyle{}3 + 15 + 125854 + 1214151 - 6 \\ \Large\mathsf\displaystyle{}18 + 125854 + 1214151 - 6 \\ \Large\mathsf\displaystyle{}125872 + 1214151 - 6 \\ \Large\mathsf\displaystyle{}12267323 - 6 \\ \Large\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{ 1,2267317 \cdot {10}^{7} }}}\end{gathered} }$

$\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{{ \red{Bons}} \blue{\:Estudos}}}}\end{gathered} }$