NumberblocksSeries 4EighteenCBeebiesFirst broadcast: Wed 19th Jun 2019, 06:55 on CBeebiesLatest broadcast: Fri 29th Mar 2024, 13:05 on CBeebies HDAvailable for yearsMeet Eighteen, the speedy super-rectangle who was born to ride the rays. Learn all about the number 18 with Numberblock Eighteen!ContributorsOne and Three:Beth ChalmersTwo, Eight:Marcel McCallaNine :David HoltGenresChildren'sFactualLearningPre-SchoolBrandNumberblocksSeriesNumberblocks: Series 4 Source: BBC Online