如果你喜欢数学有趣的话，可以说：

I enjoy math that is interesting/engaging/fun.

来源：

这句话的来源是英文动词 "enjoy"，意思是 "喜欢"，后面加上形容词 "interesting"、"engaging" 或 "fun" 来表示数学是有趣的。

例句：

I enjoy math because it's always full of surprises and new challenges. (我喜欢数学，因为它总是充满惊喜和新的挑战。)
I find math to be really enjoyable when I'm able to solve a problem that I thought was impossible. (当我能解决一道我以为不可能解决的问题时，我发现数学真的很有趣。)
I love math because it's always so satisfying to see the patterns and connections between different concepts. (我喜欢数学，因为看到不同概念之间的模式和联系总是如此令人满意。)