Mental Math Diagnostic Test for Quant Interviews
A mental math diagnostic test for quant interviews that identifies weak arithmetic categories and maps them to focused drills.
Candidates unsure which arithmetic categories are weak.
Test categories, not confidence
A useful diagnostic separates fractions, percentages, multiplication, division, probability ratios, EV arithmetic, and unit conversion.
Score by miss type
Record whether each miss came from setup, arithmetic, sign, unit, attention, or time pressure. The label decides the next drill.
Concrete diagnostic block
Use five fraction conversions, five percentage calculations, five products or divisions, five probability ratios, and five EV calculations.
Retest narrowly
After a repair block, retest the weakest category rather than rerunning the whole diagnostic every day and muddying the signal.
Common mistakes
Candidates often pick drills based on what feels hard. A diagnostic gives evidence so practice time goes where it matters.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.