上百个比一百多，上就可以看成增加的符号。

上百个，比一百多。一般是比一百多一点。

According to Chinese dictionary: 上：达到一定的程度或数量：～年纪。（Reach a certain level or amount） So "上百"--reach100, it must be a number that contain100. It can only be bigger than 100！

多

你好！“上百个” means “more than one hundred”.所以上百个比一百多。 Welcome to take my class so that I can help you with your Chinese!