Răspuns :
((((10+10)*10):10)-10)*10=
=(((20*10):10)-10)*10
=((200:10)-10)*10
=(20-10)*10
=10*10
=100
=(((20*10):10)-10)*10
=((200:10)-10)*10
=(20-10)*10
=10*10
=100
100=(5-5+5×5-5)×5
(5-5+5×5-5)×5=
(5-5+25-5)×5=
20×5=100
E vorba de cifre identice!
(5-5+5×5-5)×5=
(5-5+25-5)×5=
20×5=100
E vorba de cifre identice!