a little a few much等词作副词修饰形容词比较级时怎么用?什么a few more much more什么的我都不理解

形容词比较级前可以用much, even, far, any, still, a little, a lot, a bit等词修饰，表示“更……的多”，“更……一点儿”， “更……一些”
She's a little fatter than I.
Today is much hotter.

I'm a little better today (than I was yesterday).
Tom has ten books and I have a few more (books,that is,I may have 13 or 16 books.)
Jack is much more careful than Tom.
Jack runs much more quickly than Tom.
Tom has $ 10.Jack has much more (dollars than Tom.That is,Jack may have 30,50 or more dollars.)