Question

a) 14 : 2 + [13 - (4 x 2 +1)] = 7+ [13 - 9] = 7+ 4 = 11
b) 24 - 3x (-3) + {[-(-42):(-14)]- (21)} =
c)(-30) +{- 12 x [(4 - 12): (4-8)] + 5)
d) [(-3)2 x (+3)2 x (-3)) : (-3)
e) (-2)2 x (+ 2)2 x [- 7 (2 - 9)]:(-4-3)
f) 27 : 3 + [23 - (3 x 4 +1)] =​

Answer 1

Resposta:

a) 14 : 2 + [13 - (4 . 2 +1)] = 7+ [13 - 9] = 7 + 4

14 : 2 + [13- (8 - 1)] = 7 + 4

14 : 2 + [13 - 7] = 7 + 4

14 : 2 + 6 = 7 + 4

7 + 6 = 11

11

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b) 24 - 3.(-3) + {[-(-42):(-14)]- (21)}

24 - 9 + {-3 - 21}

24 - 9 -24

15 - 24

- 9

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c)(-30) +{- 12 .[(4 - 12) : (4-8)] + 5}

-30 + {-12 .[-8 : -4] + 5}

-30 + {-12 . 2 + 5}

-30 + {24 + 5}

-30 + 29

-1

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d) [(-3)2 x (+3)2 x (-3)] : (-3)

[-6 . 6 . -3] : -3

[-36 . -3] : -3

108 : -3

-324

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e) (-2)2 x (+ 2)2 x [- 7 (2 - 9)] : (-4-3)

(-2)2 .(+ 2)2 .[- 7(-7)] : (-7)

(-2)2 .(+ 2)2 .(-49) : (-7)

-4 . 4 . 7

-16 . 7

-112

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f) 27 : 3 + [23 - (3 x 4 +1)]

27 : 3 + [23 - (12 + 1)]

27 : 3 + [23 - 13]

27 : 3 + 10

9 + 10

19

Espero ter ajudado <3