Sorry. you need to have both javascript and flash enabled to take this survey. If you are accessing this file from a local location, like your hard disk, you may be seeing this file because of an Internet Explorer security precaution. You can view it by accepting the security warning. You may wish to change your security setting to avoid this message in the future
mehr: Bruchrechnung, Dreisatz, Durchschnitts- & Prozentrechnen, Zinsrechnung,Verteilungsrechnung, Tests
