ajutatima va rog la mate dau coronita!!!!

1) 9+25-16+0=18;
2) (16-9):7 + 1^43= 7:7 + 1 =8;
3) [100:4 + (1 +0)x6]:31= (25+6):31=1;
4) 16:4 + 3^6:3:5 + 0 = 4+3^1=7;