Question

a. (3 − 8) + [5 − (−2)] =
b. 5 − [6 − 2 − (1 − 8) − 3 + 6] + 5 =
c. 9 ÷ [6 ÷ (− 2)] =
d. (7 − 2 + 4) − (2 − 5) =
e. −12 x 3 + 18 ÷ (−12 ÷ 6 + 8) =
f. (−9)2 =
g. (−1)7 =
h. (−3)2 x (−3) =
i. (−3)3 =

Answer 1

Respuesta:

Explicación paso a paso:

a.

(3 − 8) + [5 − (−2)] =

 (-5)    + [5 + 2] =

  -5    +  7 = +2

b.

5 − [6 − 2 − (1 − 8) − 3 + 6] + 5 =

5 − [6 − 2 − (− 7) − 3 + 6] + 5 =

5 − [6 − 2 + 7 − 3 + 6] + 5 =

 5 − [19 − 5] + 5 =

5 -  14 + 5

10 - 14 = -4

c.

9 ÷ [6 ÷ (− 2)] =

9 ÷ [− 3] =  -3

d.

(7 − 2 + 4) − (2 − 5) =

(11 − 2) − (2 − 5) =

9 − (− 3) =

9 + 3 =  +12

e.

−12 x 3 + 18 ÷ (−12 ÷ 6 + 8) =

−12 x 3 + 18 ÷ (−2 + 8) =

−36 + 18 ÷ (+6) =

−36 + 3 = -33

f.

(−9)2 =  -18

g.

(−1)7 =  -7

h.

(−3)2 x (−3) =

−6 x (−3) = +18

i.

(−3)3 = -9