Question

2*5-3*4(-2)*3=
2+4(3-1)+(12:3)=
5-6:(3-1)+2*(8:2)=
{12-(12:3)-(12:4)}+3=

Answer 1

2*5-3*4(-2)*3=10-12(-2)*3=10-(-24)*3=10-(-72)=10+72=82
2+4(3-1)+(12:3)=2+4*2+4=2+8+4=14
5-6:(3-1)+2*(8:2)=5-6:2+2*4=5-3+8=10
{12-(12:3)-(12:4)}+3={12-4-3}+3=8