Răspuns:
(56:7+36:6+26):(8x5:4+42:6-13)=
(8+6+26):(40:4+7-13)=
(14+26) :(10+7-13)=
40:(17-13)=
40:4=10
(35:5+48:6+20):(15:3+3x8:4-4)=
(7+8+20):(5+3x2-4)=
(15+20):(5+6-4)=
35:(11-4)=
35:7=5
(72:8+24:4+25):8+(6x7):6=
(9+6+25):8+42:6=
(15+25):8+7=
40:8+7=
5+7=12