For the function below:

=ROUNDDOWN((B98/($B$98+$B$99+$B$100+$B$101+$B$102+$B$103+$B$104))*C98,0)

rather then specifing $B$98+$B$99+$B$100+$B$101+$B$102+$B$103+$B$104... how can I specify a range with less characters? Like $B$98 to $B$104