Question

Sabendo que 2 elevado a 10=1024,calcule mentalmente 2 elevado 9 ?

Answer 1

2x2x2x2x2x2x2x2x2=512

Answer 2

$2^{9} = 2.2.2.2.2.2.2.2.2$
$4 . 4 . 4 . 4 .2 =$
$16 . 16 . 2 =$
$256.2 =$
$= 512$