Algebra fundamentals
Algebra is arithmetic with the numbers left blank, which lets one statement describe every case at once. This course covers the moves you need and what they mean.
What you'll learn
10 chapters, then the quiz
- 01Why lettersDescribing every case at once.
- 02RearrangingOne rule, applied repeatedly.
- 03Expanding and factorisingThe same move in both directions.
- 04Straight linesy = mx + c and what it means.
- 05QuadraticsWhen the unknown is squared.
- 06Fractions and powersThe rules that trip people up.
- 07Two unknownsSimultaneous equations.
- 08InequalitiesRanges instead of points.
- 09FunctionsA machine with an input and an output.
- 10Turning words into algebraThe part that feels hardest.
More math & logic tests
See all →- Easy
Mental math sprint
Arithmetic you should be able to do without reaching for a calculator.
8 questions5 min - Hard
Logic puzzles
Short problems where the obvious answer is usually the wrong one.
7 questions9 min - Medium
Probability basics
Coins, dice and cards, plus the traps that come with them.
7 questions7 min