Question

a) 18-[2+(7-3-8)-10]

b) -4+[-3+(-5+9-2)]

c) -6-[10+(-8-3)-1]

d) -8-[-2 (-12)+3]

e) 25-[-2+[6+(-4-1)]

f) 17-[5-3+[8-(-1-3)+5]

Por favor me ajudem!!!

Answer 1

a)18-[2+(7-11)-10]= 18-[2+(-4)-10]= 18-[2-4-10]=
18-[-12]= 18+12=30

b)-4+[-3+(-5+9-2)]=-4+[-3+2]= -4 +(-1)= -4-1=-5

c)-6-[10+(-8-3)-1]=
-6-[10-11-1]=-6-[-1-1]= -6-[-2]=-6+2= -4

d)-8-[-2.(-12)+3]=-8-[+24+3]=-8-27=-35

e)25-[-2+6+(-4-1)]=25-[-2+6-5]= 25-[4-5]=
25-[-1]=25+1=26

f)17-[5-3+8-(-1-3)+5]= 17-[5-3+8-(-4)+5]=
17-[5-3+8+4+5]= 17-[2+8+4+5]=17-[+19]=17-19=-2

Answer 2

A)
= 18-[2+(7-3-8)-10]
= 18 - [2 + (-4) - 10]
= 18 - [ 2 - 4 - 10]
= 18 - [ - 12]
= 18 + 12
= 30

b)
= -4+[-3+(-5+9-2)]
= - 4 + [ - 3 + (2)]
= - 4 + [ - 1]
= - 4 - 1
= - 5

c)
= - 6-[10+(-8-3)-1]
= - 6 - [10 + (-11) - 1]
= - 6 - [10 - 11 - 1]
= - 6 - [10 - 12]
= - 6 - [ - 2]
= - 6 + 2
= - 4

d)
= -8-[-2 (-12)+3]
= - 8 - [ + 24 + 3]
= - 8 - [ 27]
= - 8 - 27
= - 35

e)
= 25- { -2+[6+(-4-1)]}
= 25 - { - 2 + [6 + (-5)]}
= 25 - {- 2 + [6 - 5]}
= 25 - { - 2 + 1}
= 25 - { - 1}
= 25 + 1
= 26

f)
= 17-[5-3+[8-(-1-3)+5]
= 17 - { 2 + [8 - (-4)] + 5}
= 17 - { 2 + [8 + 4] + 5}
= 17 - { 2 + 12 + 5}
= 17 - 19
= - 2