Răspuns :
[tex]106*(248:2) = 106*124 = 13144[/tex]
[tex](640:2)-185 = 320-185 = 135[/tex]
[tex](317+316):2 = 633 : 3 = 211[/tex]
[tex](640:2)-185 = 320-185 = 135[/tex]
[tex](317+316):2 = 633 : 3 = 211[/tex]