Question

[matematica]
1) Resolva:

a) 12 + [35 - (10 + 2) +2] =
b) 37 + [-25 – (-11 + 19 – 4)] =
c) -8 + {-5 + [(8 – 12) + (13 + 12)] – 10} =

Answer 1

Explicação passo-a-passo:

12 + [35 - (10 + 2) +2]

12 + [35 - 12 +2]

12 + [35 - 14 ]

12 + 21

33

_________________

37 + [-25 – (-11 + 19 – 4)]

37 + [-25 – ( 8 – 4)]

37 + [-25 – 4 ]

37 + [-29 ]

37-29

8

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-8 + {-5 + [(8 – 12) + (13 + 12)] – 10}

-8 + {-5 + [(8 – 12) + 25 ] – 10}

-8 + {-5 + [ -4 + 25 ] – 10}

-8 + {-5 + 21 – 10}

-8 + { 16 – 10}

-8 + 6

-2