Rules of algebra (OCR GCSE Maths): Flashcards

Maths with letters (variables) representing numbers

Numbers we don't know yet

Terms with same letters and powers

$2m$ (add coefficients of like terms)

Single part with a variable, e.g. $4m$, $2r$

Collection of terms, no equals sign

Like expression but with equals sign

Yes, different terms can be multiplied together

Alphabetical, no multiplication sign

$r^2$ (squaring the term)

As a fraction

Replace variables with given numbers

BODMAS or BIDMAS

Calculate power first, then multiply

Multiply numbers first, then letters alphabetically