a: (-3)+8-11
\(=\left(-3-11\right)+8\)
=-14+8
=-6
b: \(7-\left(-9\right)-3\)
=7+9-3
=16-3
=13
c: \(\left(-5\right)-\left(9-12\right)\)
\(=\left(-5\right)-\left(-3\right)\)
=-5+3
=-2
d: \(\left(-9\right)+\left(-1\right)-\left(-2\right)\)
\(=\left(-9-1\right)+2\)
=-10+2
=-8
e: \(\left(-3\right)+\left(-350\right)+\left(-6\right)\)
\(=-\left(3+350+6\right)\)
=-359
a. (-3) + 8 - 11
= 5 - 11
= -6
b. 7 - (-9) - 3
= 16 - 3
= 13
c. (-5) - (9 - 12)
= -5 - (-3)
= -2
d. (-9) + (-1) - (-2)
= -10 + 2
= -8
e. (-3) + (-350) + (-6)
= [(-3) + (-6)] + (-350)
= -9 - 350
= -359
a) (-3)+8-11
=(−3−11)+8=(−3−11)+8
=-14+8
=-6
b) 7−(−9)−37−(−9)−3
=7+9-3
=16-3
=13
c) (−5)−(9−12)(−5)−(9−12)
=(−5)−(−3)=(−5)−(−3)
=-5+3
=-2
d) (−9)+(−1)−(−2)(−9)+(−1)−(−2)
=(−9−1)+2=(−9−1)+2
=-10+2
=-8
e) (−3)+(−350)+(−6)(−3)+(−350)+(−6)
=−(3+350+6)=−(3+350+6)
=-359