Question

8+4:2x5+6[(3x3):9] - [27:(5+(10x2-1)) ] =?

Answer 1

8+4/2*5+6[(3*3)/9]-[27/(5+10*2-1)]=
8+10+6*1-27/24=
18+6-1.125=
22.875

/ este impartit 
* este inmultit

Answer 2

8+4:2x5+6[(3x3):9] - [27:(5+(10x2-1)) ] = 
8+2x5+6(9:9)-[27:(5+19)]=
8+10+6-(27:24)=
24-(27:24)=
24-1,125=
23,125