Răspuns :
1.28:4=7
2.23+7=30
3.10x30=300
4.362+300=662
5.662x10=6620
6.10x6620=66200
2.23+7=30
3.10x30=300
4.362+300=662
5.662x10=6620
6.10x6620=66200
10x{a-10x[362+10x(23+28:4)]}=
10x{a-10x[362+10x(23+7)]}=
10x[a-10x(362+10x30)]=
10x[a-10x(362+300)]=
10x(a-10x662)=
10x(a-6620)=
10x?=
10x{a-10x[362+10x(23+7)]}=
10x[a-10x(362+10x30)]=
10x[a-10x(362+300)]=
10x(a-10x662)=
10x(a-6620)=
10x?=