Răspuns :

Explicație pas cu pas:

Mod 1:

6x2+6x3+6x1+6x5=5x2+5x4+5x1+5x3

12+18+6+30=10+20+5+15

30+6+30=30+20

66>50

Mod 2:

6x11=5x10

66>50

Succes

Salut!

Rezolva in doua moduri:

a) 6*(2+3+1+5)=

=6*11

=66

\\SAU\\

6*(2+3+1+5)=

=6*2+6*3+6*1+6*5

=12+18+6+30

=66

b) 5*(2+4+1+3)=

=5*10

=50

\\SAU\\

5*(2+4+1+3)=

=5*2+5*4+5*1+5*3

=10+20+5+15

=50

Succes!