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!