Question

Amores podem me ajudar nessas continhas

Answer 1

2)
{2+[3÷(10-11)+1]÷2}

{2+[3÷(-1)+1]÷2}

{2+[3+1]÷2}

{2+4÷2}

{2+2}

4

Answer 2

{2 + [3 : (10-11) + 1] : 2}=
{2 + [3 : (-1) + 1] :2}=
{2 + [-3+ 1] : 2=
[2 + [-2] : 2 =
 2 - 2 : 2 = 
 2 -1 = 1
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$(-1)^7 - (-4)^3 : (+2)^3 =]$

$-1 - (-64) : (8) =$

$-1 -(-8) =$

$-1 + 8 = 7$