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4 Category
Everyday Calculations
The maths of daily life done right: percentages, tips, discounts, date differences, ages, BMI, and GPA — each with the formula and a worked example you can re-check.
2 posts
Unit Conversions
How to convert length, weight, temperature, volume, data sizes, and cooking measures — the factors, the formulas, and the traps like US vs imperial units and MB vs MiB.
1 posts
Business Calculations
The arithmetic behind small-business money — margin vs markup, VAT-inclusive vs -exclusive pricing, loan and EMI repayments, and break-even points. Educational only, never financial advice.
1 posts
Measurement Mistakes
The classic ways numbers go wrong: rounding too early, confusing similar units, mixing percentage points with percent, and other errors that quietly break a result.
1 posts