Question

Calcula el resultado de cada operación.
a. (3 – 8) + 15 – (-2)]
b. 5 - [63 - 2 - (12 – 8) - 3 + 6]
C. 18 = (12 = (-2)]
d. (5 +3.2= 6 - 4). (4 = 2 - 3 + 6)
e. (7 - 2 + 4) - (2-5)
f. (-12). 3 + 18 = (-12 = 6 + 8)
g. 6• {3. [-9 + 4(5.3 - 9)] - 3. (40 - 8)}​

Answer 1

Los resultados de cada operación son 12; 55; -3; 10; 4; -33; -306

Vamos a resolver paso a paso cada operación.

Donde se coloco un = corresponde un signo de división /

• (3 – 8) + [15 – (-2)]

$(3 -8) + [15- (-2)] =\\-5+[15+2]=\\-5+17=\\12$

• 5 - [63 - 2 - (12 – 8) - 3 + 6]

$5 - [63 - 2 - (12 -8) - 3 + 6]=\\5-[61-(4)+3]=\\5-[61-4+3]=\\5-60=\\55$

• 18 / [12 / (-2)]

$18 / [12 / (-2)]=\\18/[-6]=\\-3$

• (5 +3.2/ 6 - 4). (4 /2 - 3 + 6)

$(5 +3*2/ 6 - 4)*(4 /2 - 3 + 6)=\\(5+6/6-4)*(2-3+6)=\\(5+1-4)*(5)=\\2*5=\\10$

• (7 - 2 + 4) - (2-5)

$(7 - 2 + 4) - (2-5)=\\(1)-(-3)=\\1+3=\\4$

• (-12). 3 + 18 /(-12 / 6 + 8)

$(-12)* 3 + 18 /(-12 / 6 + 8)=\\-36+18/(-2+8)=\\-36+18/6=\\-36+3=\\-33$

• 6• {3. [-9 + 4(5.3 - 9)] - 3. (40 - 8)}​

$6*[3* [-9 + 4*(5*3 - 9)] - 3*(40 - 8)]\\6*[3*[-9+4*(15-9)]-3*32]=\\6*[3*[-9+4*6]-96]=\\6*[3*[-9+24]-96]=\\6*[3*[15]-96]=\\6*[45-96]=\\6*[-51]=\\-306$

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Answer 2

Respuesta:

a) (3-8) + [5 - (-2)]= (-5) + [5 +2] = -5 + [+7] = 2              

b) 5 - [632 - 2 (12 - 8) - 3 + 6] =  5 - [632 - 2 (4) - 3 + 6] = 5 - [632 - 8 - 3 + 6]=

    = 5 - [638 - 11]= 5- [627] = 5-627  = -622  

c) 18 / [12 / (-2)] = 18/ [-6]  = 18/-6  = -3

d) (5 + 3 * 2 / 6 - 4) * (4 / 2 - 3 + 6) = (5 + 6/ 6 - 4) * (2- 3 + 6)=

   = (5 + 1 - 4) * (-1 + 6)= (6- 4) * (+5) = (2)(5) = 10

e) (7 - 2 + 4) - (2 - 5) = (5+4) - (-3) =  (+9) + 3 = 9 + 3  = 12

f) (-12) * 3 + 18 / (-12 / 6 + 8) =  -36 + 18 / (-2 + 8) =  -36+18/6 = -36+3 = -33

g) 6 * {3 * [-9 + 4 (5 * 3 - 9)] - 3 * (40 - 8)} =  6 * {3 * [-9 + 4 (15 - 9)] - 3 * (32)} =

    =  6 * {3 * [-9 + 4 (+6)] - 96} =  6 * {3 * [-9 + 24] - 96} = 6 * {3 * [+13] - 96} =

    =  6 * {39 - 96}=  6 * {-57} = -342