Bài 2:
a: =-6-9=-15
b: \(=15\left(4+6\right)-120=150-120=30\)
c: \(=5\cdot16-18:9=80-2=78\)
d: \(=80\cdot\left[130-8^2\right]=80\cdot66=5280\)
e: \(=-5-6-7=-18\)
f: =7*13=91
g: =-6*50=-300
i: =-50/10=-5
u: =18*5=90
m: =-7*80=-560
u: =12^2=144
s: =40/5=8