Verified answer

{260 + [136 + (60 - 40 : 2) x 3] + 10}

{260 + [136 + (60 - 20) x 3] + 10}

{260 + [136 + 40 x 3] + 10}

{260 + [136 + 120] + 10}

{260 + 156 + 10} = 426

Tô com preguiça faliurb rdddd dndbdd