Somando 0,30 + 2,50:
[tex] \boxed{ \begin{array}{lr} \\ \:\huge\begin{array}{l}\sf\ \: \ \:0.30 \sf \\ \sf+2.50 \\ \textsf{---------}\\ \sf\ \:2.80\end{array} \\ \: \end{array}}[/tex]
➡️ Resposta:
[tex] \bullet \: \: \: \huge \boxed{ \boxed{ \sf2,80}}[/tex]
