The best test prep questions you can find for the ACT is on actstudent.org. There you can find all the prep tests quesitons you can handle to get your prepared for ACT test.
There are a lot of great sites where you can get practice questions for your ACT. Make sure that you check out the sites: http://www.actstudent.org or check out http://www.4tests.com and see what you can find for your ACT needs.
It is possible to find practice questions for a CPA exam course on the internet. Websites such as Schweser and CPA Excel offer CPA style exam practice questions for free.
The best way for studying for the Act test is paying a tutor that can help if you have any doubts. There is a book that are selling for ACT test, online programs and even smalls groups.
Students preparing for the ACT can find practice tests in numerous places. The top practice tests come from Princeton Review, ACTstudent, 4tests, and Petersons.
One can get practice CDL test questions on several websites. These websites include CDL's official website, which is the most trusted website to find CDL practice questions.
You can find practice CCNA questions online at websites such as TechTarget and 9Tut. You can also find help for practicing for an upcoming CCNA exam at the Network World website.
The CollegeBoard website has some free SAT practice Questions you can try. ProProfs offers some SAT Practice Exams that you may find helpful in addition to the resources available on CollegeBoard.
On the exam paper. =)
The best way is to study. Go through practice exams (they sell them in study books) to see what kinds of questions will be asked. Look at the questions you got wrong and find out why they are wrong. This will help you to learn about the type of questions or the content the question was asking about.
A teacher can find some practice long divsion questions on math websites targeted to helping children practice and study. A teacher may also find that their fellow collegues may also have some practice examples that they use with their own students.
You cannot find the solutions to the questions, but the best website to give you practice would be the SHL website.
Your son's school may offer free ACT practice exams. You should talk to the high school counselor.