AI Constitution

Resources · Learning tool

Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

Sign in to track your progress and get personalized recommendations. You can browse freely below.

Knowledge-graph map

Computing
Mastered Ready to learn LockedHover a node for its description · click to open
← Back

Decimals and fractions

Mathematics · Fractions · procedural

Solve simple measure and money problems involving fractions and decimals to two decimal places

What mastery looks like

  • Calculate 1/4 of £3.20
  • A rope is 2.5 m long; how much is left after cutting 0.75 m?
  • Find 3/10 of 1 kg and express the answer in grams and as a decimal of a kg

Check your understanding

If a bottle holds 1.5 litres and Decimals and fractions drinks 0.75 litres, can they work out how much is left — and write it as both a decimal and a fraction?