Răspuns :
a |___| |
b |___|_1_| } 315
c |___|_1_|_1_| |
315-3=312 ( 3a)
312:3=104(a)
104+1=105(b)
104+2=106 (c)
b |___|_1_| } 315
c |___|_1_|_1_| |
315-3=312 ( 3a)
312:3=104(a)
104+1=105(b)
104+2=106 (c)