a) (-2)³×3-25= b) (-15)÷3-5×(-1)= c) 3×(-7)-7×(-2)= d) 6×(-4)+5×(-9)= e) (-18)÷9-(-27)÷(-1)=

a) (-2)³×3-25= -8*3-25=1 b) (-15)÷3-5×(-1)=-5+5=0 c) 3×(-7)-7×(-2)=-21+14=-7 d) 6×(-4)+5×(-9)= -24 - 45= -69 e) (-18)÷9-(-27)÷(-1)= -2-27=-29