[ 12 + 3 x (20 -2 x 5 ) + 13 ] x 10 =
{ 12 + 3 x [ 20-2 x (7 – 10 : 5 ) ] +13 } x 10 =
{ 12 + 3 x [ 20 – 2 x ( 7 – 10 : 5 ) ] + 13 } x 10 =
(60 + 2 x 40) x (8 – 9 : 3 ) =
[50 + 60 x (7 – 3 x 2 )] : 10 =
2 x {42 – [12 + (8 + 2×5 )]} =
Mai fa si tu inca trei pup :*
