Question

{2 + [3 ∶ (10 − 11) + 1] ∶ 2}

Answer 1

{2+[3÷(10-11)+1]÷2}

{2+[3÷- 1 +1 ] ÷2}

{2+[-3+1]÷2}

{2+-2÷2}

{2-1}

1

BONS ESTUDOS!⏳♎