Hi,
when I install flash from the 1-Click-Installer on this page it ask for 70 packages!
Is it ok? Please see this pic for details.
Many thanks 
Well, if you are on 64 bit system and install 32 bit flash, it needs to install all the necessary libraries which are not normally need on 64 bit. So I’d say it is normal.
I think you only have to download the .rpm and open it with some zip program as ark and copy one file libflashplayer.so to the location /usr/lib64/browser.plugins
Do not use the 1 click installer for flash, the packages you found are user packages not official ones
opensuse dropped Flash support for LEAP and Tumbleweed you can get flash from packman (or adobe)
https://en.opensuse.org/Adobe_Flash_Player
if you have the packman repo all you need to do is
zypper in flash-player
if you don’t have it add it as it is the only way to get multimedia working on opensuse
zypper ar -f http://packman.inode.at/suse/openSUSE_Tumbleweed/ packman
zypper in flash-player
zypper dup --from packman
no never do that!!!
you can install an rpm with rpm or zypper
rpm -i rpm_file.rpm
zypper in rpm_file.rpm
there is no need for unpacking an rpm, also seeing that you are a newbie do not mess with the root file system, and although doing that might work for a while as you will never get updates FIrefox will bloick that version of flash player and you will have to unpack copy and chage file permissions in the root that increases the chance of breaking something, do what I wrote above and opensuse will automatically update flash whenever a new version pops up on packman.
@horizonbrave you can also post your repo list
zypper lr -d
as arvidjaar said those are 32bit runtime packages and are pulled when you install a 32bit application
just an extra note Tumbleweed is a rolling distribution and if you have an issue with 70 packages keep in mind that TW changes and re-installs all packages at least once a month sometimes once a week, it’s an OS that constantly changes and it’s network intensive if you want a stable LTS OS install LEAP