ok hơi dài mà chắc mất thời gian lắm
1) (-5)+(-18)-(+9)+(-3)
= -23 - 6
= -29
2) (-4)-(-8)+(-15)+(-10)
= 4+ -25
=-21
\(1,=\left(-5\right)-18-9-3\\ =-35\\ 2,=\left(-4\right)+8-15-10\\ =-21\\ 3,=\left(-7\right)+12-9+10\\ =6\\ 4,=16+3-5-7+12\\ =19\\ 5,=\left(-11\right)+15-13-9-5\\ =-23\\ 6,=4+12-5+9\\ =20\\ 7,=\left(-28\right)+30-4\\ =-2\\ 8,=13-17+15+3-4+8-9\\ =9\\ 9,=24+30-24-30+8\\ =8\\ 10,=\left(-28\right)+32+28-34\\ =-2\)
3) -(+7) - (-12)+(-9)+(+10)
= 5 + 1
= 6
4)16-(-3)+(-9)+ (+10)
= 19 + 1
= 20