[tex] \large \boxed{ \boxed{ \sf \large {10}^{3} \Leftrightarrow 10\cdot10 \cdot10 = \blue{ 1000}}}[/tex]
[tex] \large \boxed{ \boxed{ \sf{( - 20)}^{2} \Leftrightarrow( - 20) \cdot( - 20) = \blue{ 400}}}[/tex]
