Efectuati: 2x{30-[117+(202-28x7)x18]:9}


Care raspunde primul primeste coronita


Răspuns :

2×(30−(117+(202−28×7)×18)
÷9) egal 10
2×{30-[117+(202-196)×18]:9}=
2×[30-(117+6×18):9]=
2×[30-(117+108):9]=
2×(30-225:9)=
2×(30-25)=
2×5=10