The Old English counting system had twelve and sixty as the important numbers (I think this is why there are twelve inches in a foot); so, there are unique numbers from one to twelve, and then three-ten, four-ten, etc. above that. Then, all numbers above twenty are written in the form "one and twenty, three and thirty", etc. Further, all numbers above sixty-nine have the prefix hund- added to them: hundseofontig, hundeahtetig, hundnigontig, nigon and hundnigontig, an hund, hundendleofantig (literally, "eleventy"!), and then either hundtwelftig or hundtwentig, continuing with hundþrittig, etc. 154 would be "feower and hundfiftig."
It's all very silly-sounding.
It's all very silly-sounding.