a) 5+(-8+13)
b) -6-(3-12)
c) 12+(-1+5)-(2-7)
d) 36-(19-8+27)
e) (4-10)-(10-4) -(4-10)
f) -(1-7)+2-(-3-8+12)
g) 2-(-1-5+8)+(7-3)-4
h) -81+14-(52+31+18)+(103-50)
Soluções para a tarefa
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3
Olá,
Vamos lá,
A) 5+(-8+13) = 5 + 5 = 10
b) -6-(3-12) = -6 -(-9)= -6+9= 3
c) 12+(-1+5)-(2-7) = 12 + ( +4)-(-5)= 12 + 4 +5 = 21
d) 36-(19-8+27)=36-( 38)= 36-38 = -2
e) (4-10)-(10-4) -(4-10)= -6 - 6 +6 = -6
f) -(1-7)+2-(-3-8+12) = -(-6)+2-(1) = 6 +2-1= 7
g) 2-(-1-5+8)+(7-3)-4 = 2-( + 2) + ( +4) -4 = 2 -2 + 4 - 4 =0
h) -81+14-(52+31+18)+(103-50)
= -81 +14-101+53
= -115
Vamos lá,
A) 5+(-8+13) = 5 + 5 = 10
b) -6-(3-12) = -6 -(-9)= -6+9= 3
c) 12+(-1+5)-(2-7) = 12 + ( +4)-(-5)= 12 + 4 +5 = 21
d) 36-(19-8+27)=36-( 38)= 36-38 = -2
e) (4-10)-(10-4) -(4-10)= -6 - 6 +6 = -6
f) -(1-7)+2-(-3-8+12) = -(-6)+2-(1) = 6 +2-1= 7
g) 2-(-1-5+8)+(7-3)-4 = 2-( + 2) + ( +4) -4 = 2 -2 + 4 - 4 =0
h) -81+14-(52+31+18)+(103-50)
= -81 +14-101+53
= -115
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