вычисли выражения 8+12:4*3= 20-10:(2+8)= (16+4):5*4= 6+3*5-40:5= 12+18:3-5=

1) 8+(12:4*3) = 8+3*3 = 8+9 = 172) 20-10:(2+8) = 10:10 = 13) (16+4):5*4 = 20:5*4 = 4*4 = 164) 6+(3*5)-(40:5) = 6+15-8 = 21-8 = 135) 12+(18:3)-5 = 12+6-5 = 18-5 = 13