erplex
  • Lessons
  • Problems
  • Speed Run
  • Practice Tests
  • Skill Checklist
  • Review Videos
  • All Content
  • Landing Page
  • Sign Up
  • Login
  • erplex

    Problem Bank

    Access custom-built, exam-style problems for your objective. Each problem has a full solution and mark-scheme, as well as AI grading and support.

    556 Problems Available

    Problem Bank Features:

    AI Grading: Get instant feedback on your solutions, with AI grading and mark-schemes. You can also scan your work if you prefer to work on paper.

    Detailed Filters: Filter by difficulty, completion, theme, and more to find the perfect problem for your needs.

    Accurate Mark-Schemes: Each problem has a full solution with embedded mark-scheme that you can use to check yourself off on and save your progress.

    1: Algebra

    6 units

    Exponents & Logarithms

    53 PROBLEMs

    Approximations & Error

    15 PROBLEMs

    Sequences & Series

    31 PROBLEMs

    Matrices

    53 PROBLEMs

    Complex Numbers

    19 PROBLEMs

    Financial Mathematics

    14 PROBLEMs

    2: Functions

    4 units

    Cartesian plane & lines

    26 PROBLEMs

    Function Theory

    35 PROBLEMs

    Modelling

    33 PROBLEMs

    Transformations & asymptotes

    7 PROBLEMs

    3: Geometry & Trigonometry

    5 units

    2D & 3D Geometry

    33 PROBLEMs

    Voronoi Diagrams

    14 PROBLEMs

    Trig equations & identities

    12 PROBLEMs

    Vectors

    25 PROBLEMs

    Graph Theory

    41 PROBLEMs

    4: Statistics & Probability

    5 units

    Probability

    54 PROBLEMs

    Descriptive Statistics

    41 PROBLEMs

    Bivariate Statistics

    29 PROBLEMs

    Distributions & Random Variables

    46 PROBLEMs

    Inference & Hypotheses

    30 PROBLEMs

    5: Calculus

    3 units

    Differentiation

    59 PROBLEMs

    Integration

    50 PROBLEMs

    Differential Equations

    24 PROBLEMs