\documentclass[12pt,a4paper,landscape]{article}

%%%%%%%%%%%%%% LES PACKAGES
\usepackage[left=0.8cm,right=1cm,top=1cm,bottom=1cm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage[frenchb]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{thmbox}%pour les jolis thm
\usepackage{array,multirow,tabularx}%pour les tableaux
\usepackage{cancel}%pour barrer, simplifier
\usepackage{mathtools}%pour insérer le logo
\usepackage{bbold} %pour l'indicatrice
\usepackage{tocloft}%pour la mise en forme de la toc
\usepackage{tikz}%pour les graphiques et dessins

%%%%%%%%%%%%%% LES NOUVELLES COMMANDES

\newcounter{difficulte}
\setcounter{difficulte}{1}

\newcounter{numCarte}[difficulte]
%\renewcommand{\thenumCarte}{\thedifficulte.\arabic{snc}
\setcounter{numCarte}{1}

\newcommand{\num}{
\rotatebox{90}{\hspace{-0.4cm}
\textcolor{gray}{\large B.\thedifficulte.\thenumCarte}
}
\stepcounter{numCarte}
}
\newcommand{\diff}{
\stepcounter{difficulte}
\setcounter{numCarte}{1}
}

\pagestyle{empty}
\begin{document}
\Large
\renewcommand{\arraystretch}{2.9}

\begin{tabular}{@{}||*{5}{p{4.8cm}||}}
\hline\hline
\num$\{1\} \!\subset\! \{1,2,3\} $&
\num$\{1,2\} \!\subset\! \{1,2,3\} $&
\num$1 \!\in\! \{1,2,3\}$&
\num$4 \!\not\in\! \{1,2,3\}$&
\num$ \{3,4\} \!\not\subset\! \{1,2,3\}$
\\
\hline\hline
\diff
\num$ A \subset B $&
\num$ A \not\subset B $&
\num$ A \in B$&
\num$ A \not\in B$&
\num$ A \neq B $\\
\hline\hline
\diff
\num$A \subset A\!\cup\! B $&
\num$B \subset A\!\cup\! B $&
\num$A\!\cap\! B \subset A $&
\num$A\!\cap\! B \subset A $&
\num$A\!\cap\! B \subset A\!\cup\! B$\\
\hline\hline
\diff
\num$\emptyset \cup \{ 1 \} = \{ 1 \}$&
\num$\emptyset \subset \{ 1,2 \}$&
\num$A \setminus \emptyset = A$&
\num$\emptyset \!\cap\! A = \emptyset$&
\num$\emptyset \!\cup\! A = A$\\
\hline
%\diff
%\num$ $&
%\num$ $&
%\num$ $&
%\num$ $\\
%\hline\hline
\end{tabular}

\setcounter{difficulte}{1}
\setcounter{numCarte}{1}
\vspace{0.1cm}

\begin{tabular}{@{}||*{5}{p{4.8cm}||}}
\hline
\num$\{1\} \!\subset\! \{1,2,3\} $&
\num$\{1,2\} \!\subset\! \{1,2,3\} $&
\num$1 \!\in\! \{1,2,3\}$&
\num$4 \!\not\in\! \{1,2,3\}$&
\num$ \{3,4\} \!\not\subset\! \{1,2,3\}$
\\
\hline\hline
\diff
\num$ A \subset B $&
\num$ A \not\subset B $&
\num$ A \in B$&
\num$ A \not\in B$&
\num$ A \neq B $\\
\hline\hline
\diff
\num$A \subset A\!\cup\! B $&
\num$B \subset A\!\cup\! B $&
\num$A\!\cap\! B \subset A $&
\num$A\!\cap\! B \subset A $&
\num$A\!\cap\! B \subset A\!\cup\! B$\\
\hline\hline
\diff
\num$\emptyset \cup \{ 1 \} = \{ 1 \}$&
\num$\emptyset \subset \{ 1,2 \}$&
\num$A \setminus \emptyset = A$&
\num$\emptyset \!\cap\! A = \emptyset$&
\num$\emptyset \!\cup\! A = A$\\
\hline\hline
%\diff
%\num$ $&
%\num$ $&
%\num$ $&
%\num$ $\\
%\hline\hline
\end{tabular}


\end{document}