Răspunsuri

2014-10-23T14:31:22+03:00
81 = 9 x 9
260 = 26 x 10
510 = 51`x 10
175 = 175 x 1 
169 = 169 x 1
9261 = 1 x 9261
2014-10-23T14:36:30+03:00
81= 80+1
260= 200+60
510= 500+10
169= 100+60+9
9261=9000+200+60+1
sper sa fie bn!