Recently I saw a link here which was like "from 0 to 100 on 4 pages" by Faymann (physic also needs math lol) and know of cheat sheets for higher mathematics. But I admit, a cheat sheet isn't an exercise. And may be there are some "from 3d to 2d on 4 pages" for mathematics.. possibility to google for mathematics for engineers and getting some books of the Grad-Masters would work offline too. Or, just try to read some papers on topic you need anyway on arxiv? Or try to crack one of the 100 year mathematical problems :)

But truly, I would go to physic and do the math if I were you. But I'm too lazy