Question

Como montar essa conta -20-(21+(-20-16)+11) SOS

Answer 1

$20-(21+(-20-16)+11)$

$20-(21+(-36)+11)$

$20 - (21 - 36 +11)$

$20 - (-15+11)$

$20 - (-4)$

$20 + 4$

$24$