The method behind every pattern

% of, % change, reverse %, successive %, percentage points, shares of a total.

Sharing in a ratio, comparing rates, direct & inverse proportion, fractions of a quantity.

Reading values from a table, totals, differences, and locating the right row/column.

Reading bar, pie and line charts and combining values off them.

Mean, median, range and weighted averages.

Spotting the rule in a sequence and continuing it.

Interest, break-even, depreciation, margins, growth (CAGR), yield, index numbers, real-terms.

Speed-distance-time, currency, per-capita and work-rate problems.

Basic probability, complement, expected value, combined events, Venn diagrams.

Solving linear equations and simultaneous equations.

No-calculator fluency: the four operations, fraction/decimal/percent conversion, percentage shortcuts.

True / False / Cannot-say judgements from given data.