Algebra-01: simplifying a linear expression (option to decide how many different letters to allow (up to 3), whether to allow negatives or not, and whether to include constants)
Algebra-02: simplifying an algebraic expression involving multiplying (options to vary level of difficulty)
Algebra-03: basic simplifying of algebra with one variable and no constants (options to choose add/take away, multiply or a mixture of both)
Algebra-04: basic substitution into linear expressions (options to choose magnitude of substitution/coefficients/constants; and to decide whether to allow integers)
Algebra-05: multiply brackets and simplify (options to choose one bracket or two, and to limit requirements of integers)
Algebra-06: factorising using a numerical common factor (options to choose whether first coefficient is also Highest Common Factor, what proportion of questions have constants in, and to limit size of numbers)
Equations-01: simple one-step equations involving adding and taking away
Equations-02: basic two-step equations or inequations with letters only on left-hand side (option to choose equations, inequations or a mixture - and to vary size of numbers and whether integer solutions are allowed)
Equations-03: basic inequations with numbers only - put the signs <, > or = in the space (option to vary number of digits)
Equations-04: basic one-step equations and inequations involving multiplying (option to vary size of numbers involved; to choose equations, inequations or a mixture; and to allow fractional answers)
Equations-05: basic one-step equations involving dividing; also an option to allow two-step equations with multiplying as well (option to vary size of numbers involved; to choose equations, inequations or a mixture; and to allow fractional answers [only relevant in equations involving multiplying])
Equations-06: pre-algebra: identifying unknown numbers in sums (option to choose which operations to allow and to vary size of numbers)
Equations-09: equations involving sin/cos/tan, CAST (option to vary level of mathematical demand, in particular to decide whether equations require rearranging, and whether or not negative values of sin/cos/tan are allowed)
Equations-10: simultaneous equations in two variables (option to vary level of mathematical demand, in particular as to whether coefficients and answers are allowed to be negative)
Quadratics-02: Solving a quadratic equation by factorising (option to specify constraints on coefficients)
Quadratics-03: Solving a quadratic equation using the quadratic formula (option to specify constraints on coefficients)
(designed for science teachers, but also useful for maths teachers as an example of choosing a formula in context) SC-01(Force, Mass, Acceleration): choosing the appropriate formula to calculate one, given the other two