2x34=34+34=68
4x315=315+315+315+315=1260
2)75+34x2=75+68=143
3)4x25x36=100x36=3600
312=2x50=312x100=31200
dezvoltare
2x18=36
2x19=38
37 este nr cuprins intre 36 si 38 deci un nr se aflea
4x50=200
2x52=208
201,202,203,204,205,206,207 nu merele care se afla intre 200 si 208
deci 7 numere se afla intre 200 si 208
MM=11x
MM=11
deci 11x11=121 MNM