565+(5642-65*56+56)-(522+32*2)
1(522+32*2)=522+64=586
2(5642-65*56+56)=(5642-3640+56)
3(5642-3640+56)=2002+56=2058
4)565+2058-586=2037
-1.8+6=4.2 18.2-11.7=6.5 28.3+4.2-6.5=32.7-6.5=26.2