How do you deal with the SAT and the ACT? Practice.
Practice makes perfect.
A free website for either the SAT or the ACT is http://www.number2.com/.
Why? Let's just look at the math. You need to know what is happening.
The SAT Math portions contain three sections: two sections last 25 minutes and the third section lasts 20 minutes.
The ACT Test covers five subjects: English, Math, Reading, Science and an Optional Writing Test. The ACT Math portions are usually broken down into the following:
--33 algebra questions: 14 pre-algebra, 10 elementary algebra, and 9 intermediate algebra
--23 Geometry questions: 14 plane geometry and 9 coordinate geometry
--4 Trigonometry: sine, cosine, tangent functions, trig identities, and graphing