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Elaine266788
@Elaine266788
October 2019
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Por favor me ajudem.
1 ) calcule o valor das expressões.
a) 15 - ( 3 - 2 ) + ( 7 - 4 ) =
b) 25 - ( 8 - 5 + 3 ) - (12-5-8)=
c) 18 - [ 2 + ( 7 - 3) - 10 ] =
d) - 4 + [ - 3 ( - 5 +9 - 2 ) ] =
e) - 8 - [ - 2 - ( - 12 ) + 3 ] =
f) 25 { - 2 + 6 [ 6 + ( - 4 - 1 ] } =
g) { 2 + [ 1 + ( - 15 - 15 ) - 2 ] } =
h) 20 + { [ 7 + 5 + (9+7) + 3 ] }=
OBS: É PARA RESOLVER AS CONTAS PASSO A PASSO BEM DIREITINHO.
POR FAVOR ME AJUDEM E URGENTEEE
HELPPPPPP !
EU IMPLORO É URGENTE
DESTE JÁ AGRADEÇO PELA ATENÇÃO E COMPREENSÃO E COLABORAÇÃO!
❤ PLEASEEEEEEE, ❤❤❤
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MaxAbsoluto
Olá, Elaine. (=^.^=)/
A) 15-(3-2)+(7-4) =
17
B) 25-(8-5+3)-(12-5-8) =
19
C) 18-[2+(7-3)-10] =
22
D) -4+[-3(-5+9-2)] =
-10
E) -8-[-2-(-12)+3] =
-21
F) 25{-2+6[6+(-4-1]} =
96
G) {2+[1+(-15-15)-2]} =
-29
H) 20+{[7+5+(9+7)+3]} =
51
A) 15-(3-2)+(7-4) =
15-(1)+3 =
15-1+3 =
18-1 =
17
B) 25-(8-5+3)-(12-5-8) =
25-(12-5)-(12-13) =
25-(7)-(-1) =
25-7+1 =
26-7 =
19
C) 18-[2+(7-3)-10] =
18-[2+4-10] =
18-[6-10] =
18-[-4] =
18+4 =
22
D) -4+[-3(-5+9-2)] =
-4+[-3.(-7+9)] =
-4+[-3.(2)] =
-4+[-6] =
-4-6 =
-10
E) -8-[-2-(-12)+3] =
-8-[-2+12+3] =
-8-[-2+15] =
-8-[13] =
-8-13 =
-21
F) 25{-2+6[6+(-4-1]} =
25.{-2+6.[6+(-5)]} =
25.{-2+6.[6-5]} =
25.{-2+6.1} =
25.{-2+6} =
25.4 =
96
G) {2+[1+(-15-15)-2]} =
{2+[1+(-30)-2]} =
{2+[1-30-2]} =
{2+[1-32]} =
{2+[-31]} =
{2-31} =
-29
H) 20+{[7+5+(9+7)+3]} =
20+{[7+5+16+3]} =
20+{31} =
20+31 =
51
Regras dos sinais:
+ com + = +
- com - = +
- com + = -
+ com - = -
Bons estudos! :-)
2 votes
Thanks 1
Elaine266788
obrigado
Elaine266788
posso te seguir?
Elaine266788
se eu te seguir vc me segue também?
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Lista de comentários
A) 15-(3-2)+(7-4) = 17
B) 25-(8-5+3)-(12-5-8) = 19
C) 18-[2+(7-3)-10] = 22
D) -4+[-3(-5+9-2)] = -10
E) -8-[-2-(-12)+3] = -21
F) 25{-2+6[6+(-4-1]} = 96
G) {2+[1+(-15-15)-2]} = -29
H) 20+{[7+5+(9+7)+3]} = 51
A) 15-(3-2)+(7-4) =
15-(1)+3 =
15-1+3 =
18-1 = 17
B) 25-(8-5+3)-(12-5-8) =
25-(12-5)-(12-13) =
25-(7)-(-1) =
25-7+1 =
26-7 = 19
C) 18-[2+(7-3)-10] =
18-[2+4-10] =
18-[6-10] =
18-[-4] =
18+4 = 22
D) -4+[-3(-5+9-2)] =
-4+[-3.(-7+9)] =
-4+[-3.(2)] =
-4+[-6] =
-4-6 = -10
E) -8-[-2-(-12)+3] =
-8-[-2+12+3] =
-8-[-2+15] =
-8-[13] =
-8-13 = -21
F) 25{-2+6[6+(-4-1]} =
25.{-2+6.[6+(-5)]} =
25.{-2+6.[6-5]} =
25.{-2+6.1} =
25.{-2+6} =
25.4 = 96
G) {2+[1+(-15-15)-2]} =
{2+[1+(-30)-2]} =
{2+[1-30-2]} =
{2+[1-32]} =
{2+[-31]} =
{2-31} = -29
H) 20+{[7+5+(9+7)+3]} =
20+{[7+5+16+3]} =
20+{31} =
20+31 = 51
Regras dos sinais:
+ com + = +
- com - = +
- com + = -
+ com - = -
Bons estudos! :-)