48:8+32-54:6 (35+65)-21-(16+8) 8*6+35:5-19+2*5 18:3*4+27+40:8
2)(35+65)-21-(16+8)=55 1)48:8+32-54:6=29 3)8*6+35:5-19+2*5=46 4)18:3*4+27+40:8=56