\renewcommand{\arraystretch}{1.35} \dispo{1}{$\Eqalign{ A&=(-4)\times(-2)+5\cr B&=3\times(-4)\times(-5)\cr C&=(-2+4)\times(-1+7)\cr D&=(-2)\times(2-5)-1\cr E&=3+(-2)\times(1-3)\cr F&=(75+(-5)\times(-5))\times10\cr G&=(-3)\times(-3)+(-4)\times(-2)-1\cr }$}{% \begin{tabular}{*{6}{c|}>{\columncolor[cmyk]{0,0,1,0}}c|*{7}{c|}} \multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}&\multicolumn{1}{c}{\phantom{\ding{176}}}\\ \cline{4-9} $A$&\multicolumn{2}{c|}{}&&&&&&\\ \cline{4-14} $B$&\multicolumn{5}{c|}{}&&&&&&&&\\ \cline{6-14} $C$&\multicolumn{4}{c|}{}&&&&&\\ \cline{6-10} $D$&\multicolumn{5}{c|}{}&&&&\\ \cline{6-10} $E$&\multicolumn{4}{c|}{}&&&&\\ \cline{5-9} $F$&\multicolumn{3}{c|}{}&&&&&\\ \cline{3-9} $G$&\multicolumn{1}{c|}{}&&&&&\\ \cline{3-7} \end{tabular} } \par\vspace{4mm}\par Triangle qui a \dotfill : \_ \_ \_ \_ \_ \_ \_ \renewcommand{\arraystretch}{1}