Question

Resolva as expressões:

27:9 + (12 x 4 - 1) =

(100 : 5 + 2 x 10) : (8 x 10 - 15 x 4) =

3 + 12 x 6 - 4 x 5 + 12 : 6 =

(3 x 19 - 4 x 5 : 2) - 5 x 3 =

327 : 3 + (125 x 2 : 10 + 22) =

(328 - 324) : 17 + (87 x 2 - 39 x 4) : 6 =

1138 x (12 x 9 + 54 + 8 x 0 - 32 x 5) =

864 : 16 + (75 x 45 : 25 - 7 x 1) - 182 =

Answer 1

27:9 + (12 x 4 - 1) = 
3 + 47 = 50

(100 : 5 + 2 x 10) : (8 x 10 - 15 x 4) = 
(20 + 20) : (80 - 60) =
40 : 20 = 20

3 + 12 x 6 - 4 x 5 + 12 : 6 =
3 + 72 - 20 + 2 =
57

(3 x 19 - 4 x 5 : 2) - 5 x 3 =
(57 - 10) - 15 =
47 - 15 = 32

327 : 3 + (125 x 2 : 10 + 22) =
109 + (250 : 10 + 22) =
109 + 25 + 22 =
156

(328 - 324) : 17 + (87 x 2 - 39 x 4) : 6 = 
4 : 17 + (174 - 156) : 6 =
$\frac{4}{17}$ + 18 : 6 =
$\frac{4}{17}$ + 3 = 
$\frac{4}{17}$ + $\frac{51}{17}$ =
$\frac{55}{17}$ ≈ 3,23
*Acho que essa questão foi escrita de forma errada*

1138 x (12 x 9 + 54 + 8 x 0 - 32 x 5) = 
1138 x (108 + 54 + 0 - 160) =
1138 x (162 - 160) =
1138 x 2 =
2.276

864 : 16 + (75 x 45 : 25 - 7 x 1) - 182 = 
54 + (3.375 : 25 - 7) - 182 =
54 + (135 - 7) - 182 =
54 + 128 - 182 =
182 - 182 = 0

Answer 2

Olá, Giovana. (=^.^=)/

A) 27:9 + (12 x 4 - 1) = 50

B) (100 : 5 + 2 x 10) : (8 x 10 - 15 x 4) = 2

C) + 12 x 6 - 4 x 5 + 12 : 6 = 54

D) (3 x 19 - 4 x 5 : 2) - 5 x 3 = 32

E) 327 : 3 + (125 x 2 : 10 + 22) =  156

F) (328 - 324) : 17 + (87 x 2 - 39 x 4) : 6 = 3,25

G) 1138 x (12 x 9 + 54 + 8 x 0 - 32 x 5) =  2276

H) 864 : 16 + (75 x 45 : 25 - 7 x 1) - 182 = 364


A) 27:9 + (12 x 4 - 1) = 

27:9+(48-1) = 
27:9+47 = 
3+47 = 50

B) (100 : 5 + 2 x 10) : (8 x 10 - 15 x 4) = 

(20+20):(80-60) = 
40:20 = 2

C) + 12 x 6 - 4 x 5 + 12 : 6 = 

12.6-4.5+2 = 
72-20+2 = 
74-20 = 54

D) (3 x 19 - 4 x 5 : 2) - 5 x 3 =

(3.19-4.2,5)-15 = 
(57-10)-15 = 
47-15 = 32

E) 327 : 3 + (125 x 2 : 10 + 22) = 

327:3+(125.0,2+22) = 
327:3+(25+22) = 
327:3+47 = 
109+47 = 156

F) (328 - 324) : 17 + (87 x 2 - 39 x 4) : 6 = 

4:17+(174-156):6 = 
4:16+18:6 = 
0,25+3 = 3,25

G) 1138 x (12 x 9 + 54 + 8 x 0 - 32 x 5) = 

1138.(108+54+0-160) = 
1138.(162-160) = 
1138.2 = 2276

H) 864 : 16 + (75 x 45 : 25 - 7 x 1) - 182 = 

864:16+(75.1,8-7)-182 = 
864:16+(135-7)-182 = 
864:16+128-182 = 
54+128+182 = 364

Regras dos sinais: 

+ com + = +
- com - = +
- com + = -
+ com - = -

Conte sempre comigo.
Bons estudos! :-)