a)
[tex]-5-(-9)=-5+9=4\\8-(-2)=8+2=10\\(-13)-7=-20\\8-14=-6[/tex]
b)
[tex](-4)-11=-15\\(-10)-(-3)=(-10)+3=-7\\(-7)-(-6)=(-7)+6=-1\\(-9)-3=-12[/tex]
c)
[tex]14-(-14)=14+14=28\\(-30)-(-30)=(-30)+30=0\\(-33)-40=-73\\(-52)-20=-72[/tex]
d)
[tex](-60)-(-50)=(-60)+50=-10\\(-140)-80=-220\\610-(-10)=610+10=620\\(-140)-(-200)=(-140)+200=60[/tex]
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a)
[tex]-5-(-9)=-5+9=4\\8-(-2)=8+2=10\\(-13)-7=-20\\8-14=-6[/tex]
b)
[tex](-4)-11=-15\\(-10)-(-3)=(-10)+3=-7\\(-7)-(-6)=(-7)+6=-1\\(-9)-3=-12[/tex]
c)
[tex]14-(-14)=14+14=28\\(-30)-(-30)=(-30)+30=0\\(-33)-40=-73\\(-52)-20=-72[/tex]
d)
[tex](-60)-(-50)=(-60)+50=-10\\(-140)-80=-220\\610-(-10)=610+10=620\\(-140)-(-200)=(-140)+200=60[/tex]