1.
156.72+156.28
=156.(72+28)
=156.100
=15600
2.
32.(-39)+16.(-22)
=16.2.(-39)+16.(-22)
=16.[2.(-39)+(-22)]
=16.(-100)
=-1600
3.
-1945-(567-1945)
=-1945-567+1945
=-1945+1945-567
=0-567
=-567
4.
184.33+67.184
=184.(33.67)
=184.100
=18400
5.
44.(-36)+22.(-28)
=2.22.(-36)+22.(-28)
=22.[2.(-36)+(-28)]
=22.(-100)
=-2200
học tốt nhé