Videocart-6: Math Quiz (Addition & Subtraction) is a Triva/Game Show video game released by Fairchild Semiconductor for the Fairchild Channel F in 1977. This preprogrammed cartridge plugs into the console of the Fairchild Video Entertainment System for more TV fun. Get one problem right and a new one appears. Take turns with a buddy for added competition... Plus or minus some fast-paced fun.