Question

mirian Dafine
$12 \div 8 - 6$
me ajuda ​

Answer 1

$\Large\boxed{\begin{array}{l}\sf Em\,uma\,express\tilde ao\,num\acute erica\,elimina-se:\\\sf 1^a~\bigg(~~\bigg)\\\sf 2^a~\bigg[~~\bigg]\\\sf 3^a\bigg\{~\bigg\}\\\underline{\boldsymbol{Quanto\,as\,operac_{\!\!,}\tilde oes}}\\\sf Resolve-se:\\\sf 1^o~pot\hat encias\,e\,ra\acute izes\,(na\,ordem\,que\,vier)\\\sf 2^o~multiplicac_{\!\!,}\tilde ao\,e\,divis\tilde ao \,(na\,ordem\,que\,vier)\\\sf 3^o~adic_{\!\!,}\tilde ao\,e\,subtrac_{\!\!,}\tilde ao\,(na\,ordem\,que\,vier)\end{array}}$

$\Large\boxed{\begin{array}{l}\sf12\div8-6\\\sf resolvemos\,primeiro\,a\,divis\tilde ao.\\\sf 12\div8=1,5\\\sf12\div8-6=1,5-6=-4,5\checkmark\end{array}}$