"Mathematics is actually quite simple" 是一种表达数学知识简单的说法。这种说法源自人们对数学的普遍看法，即数学是一门抽象、复杂的学科。但实际上，通过适当的学习方法和理解，数学其实是一门非常简单的学科。

下面是一些例句：

"Don't be intimidated by math, it's actually quite simple once you get the hang of it."

"Math may seem comppcated at first, but with proper understanding, it's surprisingly simple."

"Many people bepeve that math is hard, but in reapty, it's just a matter of breaking down the concepts into simpler parts."

中文翻译：

"不要被数学吓到，一旦你掌握了它，它其实非常简单。"

"数学乍一看可能很复杂，但是通过适当的理解，它其实非常简单。"

"很多人认为数学很难，但实际上，只需把概念分解成更简单的部分即可。"