\documentclass[a4paper,12pt]{report}
\usepackage{amsthm,amssymb,amsmath}
\usepackage{xepersian}
\settextfont[Scale=1.2]{B Nazanin}
\setlatintextfont[Scale=1]{Times New Roman}
\setdigitfont  [Scale=1]{Persian Modern}
\begin{document}
\begin{table}
\caption{\label{tab:table3}مممممممم}
\begin{tabular}{ccccc}
ا  & ب & پ & ت  &ث \\
 \hline
 1&$(2e)+(2f)$&$(4i)$ &$(2c)+(2d)$&$(4f)$ \\
 2&$(2g)$&$(a)+(b)+(c)+(d)$&$(4e)$&$(2a)+(2b)$\\
 3&$(a)+(b)+(c)+(d)$&$(2g)$ &$(4e)$\\
 4&$(8r)^{\text{a}}$&$(4j)^{\text{a}}$&$(4g)$\\
 5& &$(4k)^{\text{a}}$& &$(4h)$\\
\end{tabular}
\end{table}
\end{document}