Topic in Mathematics
Letters stand in for numbers: simplify expressions, solve equations, read straight-line graphs and master powers, roots and standard form.
Part of Mathematics: 3 quizzes.
3 quizzes
Mathematics · Algebra & Equations
Indices make huge and tiny numbers easy to handle. Master the laws of exponents, zero and negative powers, square and cube roots, fractional indices, surds and standard form, the tools scientists use for everything from atoms to galaxies.
Mathematics · Algebra & Equations
An equation is a balance: whatever you do to one side, do to the other. Solve one- and two-step equations, unknowns on both sides and brackets, read gradients and intercepts from straight-line graphs, and crack a pair of simultaneous equations.
Mathematics · Algebra & Equations
Algebra is just arithmetic with a mystery number. Substitute values, collect like terms, expand brackets, factorise and translate words into expressions. A friendly first step into the language mathematicians use to describe the world.