Đáp án: 11
Giải thích các bước giải:
( 20 . $2^{4}$ + 12 . $2^{4}$ + 48 . $2^{2}$ ) : $2^{6}$
= ( 20 . $2^{4}$ + 12 . $2^{4}$ + 12 . $2^{4}$ ) : $2^{6}$
= $2^{4}$ . ( 20 + 12 + 12 ) : $2^{6}$
= $2^{4}$ . 44 : $2^{6}$
= $2^{4}$ . $2^{2}$ . 11 : $2^{6}$
= $2^{6}$ . 11 : $2^{6}$
= 11