What Should My Child Study First for PSAT 8/9 Math?

If your child is preparing for the PSAT 8/9, it can be tempting to start at the beginning of a study guide and work through every math topic. But that may not be the best use of limited preparation time.

Short Answer

Start with the math skills your child actually needs to improve.

A student who is already comfortable with a topic does not need to spend the same amount of time on it as a topic that regularly causes mistakes.

Find the Gaps First

Before deciding what to study, find out where your child is having difficulty. A diagnostic assessment, recent practice results, or even a few mixed PSAT-style questions can help reveal patterns.

Look for skills where your child is making repeated mistakes—not just an occasional careless error.

Focus on a Few Skills at a Time

Once you identify the weaker areas, don't turn them into another long checklist.

Choose a few skills to work on first. Short, focused practice makes it easier to see whether your child is actually improving.

The goal isn't to complete as many questions as possible. The goal is to strengthen the skills that are costing your child points.

Once a Skill Is Solid, Move On

When your child can consistently solve problems in a topic correctly, move on to the next skill that needs attention. Continuing to drill something they already understand may not be the best use of their preparation time.

But don't forget the skill completely.

Come back to it after a few days and try a few questions again. If your child can still solve them correctly, that's a much better sign that the skill has stuck.

Build Accuracy Before Speed

Trying to work faster doesn't help much if your child is still unsure how to solve the problem.

First build understanding and accuracy. Once the skill is solid, begin practicing it more efficiently and under some time pressure.

A Simple Way to Think About PSAT 8/9 Math Prep

Find the gaps → focus your practice → build accuracy → move on → revisit → build speed.

Your child doesn't need to study every PSAT 8/9 math topic equally. The best place to start is with the skills that need the most work—and once those skills improve, move on to what needs attention next.

Bottom Line

PSAT 8/9 preparation doesn't have to mean working through a huge amount of material. Focus on what your child needs now, revisit mastered skills later, and use the available study time where it can make the biggest difference.