a)(-27).(-28)+(-27).128
=-27.(-28+128)
=-27.100
=-2700
b)(-32).(-56)+32.44
=32.56+32.44
=32.(56+44)
=32.100
=3200
c)(-59).(-43)-59.53
=59.43-59.53
=59.(43-53)
=59.(-10)
=-590
d)(-2)3.(-8)+24
=(-2)3.(-2)3+24
=23.23+24
=23.23+23.2
=23.(23+2)
=23.10=8.10
=80
Chúc bạn học tốt!