Uhm... Arithmetic is math. It's not just math, it's the bases for almost all other branches of math.
Skill in arithmetic translates to skill in higher math, if you develop a good understand of numbers and how they work. It also works in reverse... a good understanding of higher math can help you perform basic arithmetic more effectively and easily if you understand numbers and how they work.
And finally, to say that arithmetic can not be beautiful is to deny the beauty of numbers and their quirks.