1. Know the instructions for each subject test.

2. Use your test booklet as scratch paper: Making margin notes alongside the Reading and Science Reasoning passages can help you stay on track when answering the subsequent questions.

3. Answer easy questions before hard questions: Since all questions within a Subject Test are worth the same number of points, there's no point slaving away over a difficult question if doing so requires several minutes.

4. Don't get bogged down by a hard question: In the ACT world, a minute and a half is a lot of time.

5. Avoid Carelessness: Moving too quickly through the questions can result in misinterpreting a question or missing a crucial piece of information.  The ACT writers have written the test with speedy test takers in mind: they often include tempting "partial answers" among the answer choices. Frustration of lack of confidence. Don't allow yourself to assume a defeatist attitude toward questions that appear to be complex.

6. Be careful bubbling in your answers: An easy way to prevent slips on the ACT answer sheet is to pay attention to the letters being bubbled.  Odd-numbered answers are lettered A, B, C, D and even-numbered answers are lettered F, G, H, J.

7.Always guess when you don't know the answer:  You're much better off guessing than leaving an answer blank because there's no penalty for wrong answers.