Working towards a 100-point SAT improvement: an error-based plan
A 100-point improvement is a goal, not a result that any study trick can guarantee. Start by identifying what is preventing you from answering more questions accurately within the module time. The same total score can come from different combinations of strengths and weaknesses.
Use a reliable starting point
Complete a scored official Bluebook practice test under the intended conditions. Record the date, section results and questions you found uncertain or could not finish. Do not infer a fixed number of missed questions from a scaled score: College Board’s scoring model considers more than a simple raw total.
Classify errors, then verify the cause
- Concept: you do not yet know the rule or method.
- Interpretation: you answered a different question or missed a condition.
- Execution: your method was appropriate but a calculation or step failed.
- Pacing: you did not finish or allocated time poorly.
More than one category may apply. Solving a question immediately after seeing its explanation does not prove you know the skill. Try a fresh example or return after a delay.
Original example: successive percentages
A product costs 100 units. Its price rises by 20%, then falls by 15%. What percentage of the original price remains?
100 × 1.20 × 0.85 = 102, so the final price is 102% of the original. Subtracting 20 − 15 gives the wrong answer because the reduction is taken from 120, not 100.
The useful correction is to label each base and use multipliers. A follow-up question can change both percentages. That checks whether you learned the method rather than remembered 102.
A two-week practice cycle
- Choose one Math skill and one Reading and Writing skill from your evidence.
- Review a clear explanation and complete a short untimed set.
- Record the reason for each mistake and a concrete correction.
- Retry with new questions, then practise mixed questions under a time limit.
- At the end of the cycle, review accuracy, unfinished questions and recurring errors. Adjust the next cycle.
Two weeks is a review interval, not a promised time to gain 100 points. Make room for fundamentals if they are missing. Schedule a fresh official practice test when there has been enough work to make the result useful.
Keep timing realistic
According to the official format, each Reading and Writing module lasts 32 minutes and each Math module 35 minutes. Review is limited to the current module; do not plan to borrow unused time from a later one.
Start with the SAT Math Skills Check for original maths practice and explanations, then use the free study planner to schedule the practice and review steps in your two-week cycle. If you would like feedback on your actual error patterns, see SAT tutoring.