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Skill Builders

Short sets of exam-style questions. Work each one out, then choose or type your answer: it's marked straight away and your mastery updates.

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Focus picks your weakest sub-topics first, then what your class covered in recent lessons.

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All maths skills

Skill Builder

How it works
  1. 1 Read the worked example
  2. 2 Answer every question on paper
  3. 3 Choose or type each answer and check it
  4. 4 Hand in: it's marked for you

Your questions

Work it out on paper, then check your answer. You get a second try.

📷 Upload your working (optional: your teacher sees it with your answers)

One or more photos, or a PDF, covering all your questions (up to 12 files). Lay the page flat with the question numbers showing.

AI marking is for our own questions and your own work only — please don’t upload official IB exam papers or mark schemes.

+ Add photos or a PDF