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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.

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Place value understanding and number facts

Mathematics · Number Representation & Place Value · meta

Use place value understanding and number facts to solve problems

What mastery looks like

  • Use knowledge that 34 = 30 + 4 to help add 34 + 20 = 54
  • Solve 'I think of a number, add 10, and get 45. What was my number?'
  • Apply partitioning to solve a problem in an unfamiliar context

Check your understanding

If Place value understanding and number facts is asked 'which number is closest to 50 — 47 or 54?', can they use their number knowledge to answer quickly and explain why?

Prerequisites

Required first

Helpful

Unlocks (0 directly)

None.