a) -3{[-4×(-2-5×4+5)-3]}=?
b)15-6×{[3×(-1-9)]+14}=?
c)-32+5{15-[5×(-3+8)-7×5]}=?
d)-20×{-18×[(-1)×(4-7)]}=?
Respostas
respondido por:
1
A) -3{[-4x(-2-20+5)-3]} B)15-6X{[3X(-1-9)]+14 }
-3{[-4x(-17)-3]} 15-6x{-30+14}
-3{[68-3]} 15-6x(-16)
-3{65}=-195 15+96=111
C)-32+5{15-[5x(-3+8)-7x5]} D)-20x{-18x[(-1)x(4-7)
-32+5x{15-[25-35]} -20x{-18x[3]}
-32+5{15+10} -20x{-54}=1.080
-32+125=93
-3{[-4x(-17)-3]} 15-6x{-30+14}
-3{[68-3]} 15-6x(-16)
-3{65}=-195 15+96=111
C)-32+5{15-[5x(-3+8)-7x5]} D)-20x{-18x[(-1)x(4-7)
-32+5x{15-[25-35]} -20x{-18x[3]}
-32+5{15+10} -20x{-54}=1.080
-32+125=93
Emilliboneca221:
Obrigada!
respondido por:
0
A) -3{[-4.(-2-5.4+5)-3]} =
-3{[-4.(-2-20+5)-3]} =
-3{[-4.(-22+5)-3]} =
-3{[-4.(-17)-3]} =
-3{[68-3]} =
-3{65} =
-3 + 65 = 62
B) 15-6.{[3.(-1-9)]+14} =
15-6.{[3.(-10)]+14} =
15-6.{[-30+14]} =
16-6.{-16} =
16-6.(-16) =
16+96 = 112
C) -32+5{15-[5.(-3+8)-7.5]} =
-32+5{15-[5.(+5)-7.5]} =
-32+5{15-[25-7.5]} =
-32+5{15-[25-35]} =
-32+5{15-[-10]} =
-32+5{5} =
-32+5+5 =
-32+10 = -22
D) -20.{-18.[(-1).(4-7)]} =
-20.{-18.[-1.3]} =
-20.{-18.(-3} =
-20.{-54} =
-20.(-54) = 1080
-3{[-4.(-2-20+5)-3]} =
-3{[-4.(-22+5)-3]} =
-3{[-4.(-17)-3]} =
-3{[68-3]} =
-3{65} =
-3 + 65 = 62
B) 15-6.{[3.(-1-9)]+14} =
15-6.{[3.(-10)]+14} =
15-6.{[-30+14]} =
16-6.{-16} =
16-6.(-16) =
16+96 = 112
C) -32+5{15-[5.(-3+8)-7.5]} =
-32+5{15-[5.(+5)-7.5]} =
-32+5{15-[25-7.5]} =
-32+5{15-[25-35]} =
-32+5{15-[-10]} =
-32+5{5} =
-32+5+5 =
-32+10 = -22
D) -20.{-18.[(-1).(4-7)]} =
-20.{-18.[-1.3]} =
-20.{-18.(-3} =
-20.{-54} =
-20.(-54) = 1080
15-6.{[3.(-10)]+14} =
15-6.{[-30+14]} =
15-6.{-16} =
15-6.(-16) =
15+96 = 111*
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