Perms and Combs Worksheets (1 Viewer)

[sarkar_as]

Hi guys, I have a ext1 maths exam coming up on polynomials and perms and combs. I feel like I'm pretty set for polynomials but I'm not too good at perms and combs.

So I was wondering if anyone had any links to any perms/combs worksheets that I could use.

Thanks.