e. $2^{6}$ . `5` + $2^{5}$ . `3` - $2^{4}$
`=` $2^{4}$ . $2^{2}$ . `5` + $2^{4}$ . $2^{1}$ . `3` - $2^{4}$
`=` $2^{4}$ . `4 . 5` + $2^{4}$ . `2.3` - $2^{4}$ . `1`
`=` $2^{4}$ . `20` + $2^{4}$ . `6` - $2^{4}$ . `1`
`=` $2^{4}$ . (`20 + 6 - 1`)
`=` $2^{4}$ . `25`
`= 400`
f. ($2^{20}$ - $2^{18}$ ) : $2^{18}$
`=` $2^{18}$ . ( $2^{2}$ - `1` ) : $2^{18}$
`=` $2^{2}$ - `1`
`= 3`
Lunangoctrang1
