Question

ayudenme porfa no entiendo mucho.
Resolver.
a. 120 − [20 + 6 .(19 − 12)] =
b. 8 · 3 + [ 6 + 2 · (8 : 4 + 3 · 2) – 7 · 2] + 18 : 3 =
c. 4 . [7 + 4 . (5 · 3 − 9)] – 3 . (40 − 8) =
d. 5 – [7 – 5 + (9 – 8)] – 1 + (2 . 3 + 2) =
e. [(10 – 2 . 4) + 2 . 2 ] . [ (10 + 3 . 4) – (19– 2)] + 3 . 0 + 4 =
f. 7 . [ 2 + 3 . (5 – 4)] + 2 . 4 – 8 =
g. 4 + (5 . 2 – 3 . 1) – [ 5 – (3 + 2 . 1)] + 16 : 4 + 3 . 4 . 2 – [9 – (3 . 1 . 2)] =

Answer 1

Respuesta:

a.

120 − [20 + 6 .(19 − 12)] =

120 - [20 + 6(7)]

120 - [20 + 42]

120 - 62

58

b.

8 · 3 + [ 6 + 2 · (8 : 4 + 3 · 2) – 7 · 2] + 18 : 3 =

24 + [6 + 2(2 + 6) - 14] + 6

24 + [6 + 16 - 14] + 6

24 + 8 + 6

38

c.

4 . [7 + 4 . (5 · 3 − 9)] – 3 . (40 − 8) =

4[7 + 4(15 - 9)] - 3(32)

4[7 + 4(6)] - 96

4[7 + 24] - 96

4[31] - 96

124 - 96

28

d.

5 – [7 – 5 + (9 – 8)] – 1 + (2 . 3 + 2) =

5 - [2 + 9 - 8] - 1 + 6 + 2

5 - 3 - 1 + 6 + 2

2 + 5 + 2

9

e.

[(10 – 2 . 4) + 2 . 2 ] . [ (10 + 3 . 4) – (19– 2)] + 3 . 0 + 4 =

[(10 - 8) + 4] [(10 + 12) - (17)] + 4

[2 + 4][22 - 17] + 4

[6][5] + 4

30 + 4

34

f.

7 . [ 2 + 3 . (5 – 4)] + 2 . 4 – 8 =

7[2 + 3(1)] + 8 - 8

7[2 + 3]

7[5]

35

g.

4 + (5 . 2 – 3 . 1) – [ 5 – (3 + 2 . 1)] + 16 : 4 + 3 . 4 . 2 – [9 – (3 . 1 . 2)] =

4 + (10 - 3) - [5 - (3 + 2)] + 4 + 24 - [9 - (6)]

4 + 7 - [5 - 5 ] + 28 - [3]

11 - 5 + 5 + 28 - 3

11 + 28 - 3

36

Explicación paso a paso:

EZ