TeX Quellcode:
\begin{array}{rclll} 0{,}2\cdot 4-0{,}3-0{,}5\cdot 4+3{,}1\cdot 4+0{,}7\cdot 4 &=& 1{,}9\cdot 4+5-0{,}4\cdot 4+0{,}5+2{,}2 \cr 0{,}8-0{,}3-2+12{,}4+2{,}8 &=& 7{,}6+5-1{,}6+0{,}5+2{,}2 \cr 13{,}7 &=& 13{,}7 \end{array}