Question

Resolva as expressões:
A) 14-(-10+5+3)
B) -15+[-4-(-5+20)]
C) 20-{-10+[+20-(-20+10)]}
D) -12+(-6)-(-8-5)
E) 20-[-8+(-15+9)]
F) 4-{-6-[+7+(-3+1)]+5}
G) -2-{-[-(-1+4)]}
H) 12+{-2+[-3-(-2+1)]}
OBS: É para armar tudo ..

Answer 1

A) 14-(-10+5+3) = 14-(-2) ==> 14+2 ==> 16

B) -15+[-4-(-5+20)] = -15+[-4-(+15)] =>-15+[-4-(+15)]=> -15-4-15==> - 34

C) 20-{-10+[+20-(-20+10)]} = 20-{-10+[+20-(-10)]} = 20+10-20-10)]} ==> 0

D) -12+(-6)-(-8-5)= -12-6+13 ==> - 5

E) 20-[-8+(-15+9)] = 20-[-8-6)] ==> 20+14 ==> 34

F) 4-{-6-[+7+(-3+1)]+5} = 4-{-6-[+7-2]+5} = 4-{-6-5+5} = 4+6 ==> 10

G) -2-{-[-(-1+4)]} = -2-{-[-(+3)]} ==> - 2 - 3 ==> - 5

H) 12+{-2+[-3-(-2+1)]} = 12+{-2+[-3+1]} ==> 12+{-2-2} ==> 12-4 ==> 8

Answer 2

Olá,

Vamos lá,

A) 14-(-10+5+3)
= 14 - ( -2)
= 14 + 2
= 16

B) -15+[-4-(-5+20)]
= -15 +[ - 4 - (15)]
= -15 + { -4-15]
= -15 + { -19}
= -15 - 19
= - 34

C) 20-{-10+[+20-(-20+10)]}
= 20 - { -10 + [ 20 - ( -10)]}
= 20 - { -10 + [ 20 + 10]}
= 20 - { -10 + 30 }
= 20 - { 20}
= 20 - 20
= 0

D) -12+(-6)-(-8-5)
= -12 - 6 - ( -13)
= -12 - 6 + 13
= - 5

E) 20-[-8+(-15+9)]
= 20 - [ -8 + ( -6)]
= 20 - [ -8 - 6]
= 20 - [ - 14]
= 20 + 14
= 34

F) 4-{-6-[+7+(-3+1)]+5}
= 4 - { -6-[ 7 + (-2)]+5}
= 4 - { -6-[ 7 -2] +5}
= 4 - { -6-[ 5 ] + 5}
= 4 - { -6-5+5}
= 4 - { -6}
= 4 + 6
= 10

G) -2-{-[-(-1+4)]}
= -2 - { -[-(3)]}
= -2 -3
= -5

H) 12+{-2+[-3-(-2+1)]}
= 12 + { -2 + [ - 3 - ( -1)]}
= 12 + { -2 + [ -3 +1]}
= 12 + { -2 + [ -2]}
= 12 + { -2 -2 }
= 12 + { -4}
= 12 -4
= 8