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What bounds mean

What bounds mean

Number line with 20.5 as a filled endpoint and 21.5 as an open endpoint for 21 cm to the nearest cm

A rounded measurement is not exact. If a length is given as 21 cm to the nearest cm, the true value lies in a continuous interval of possible values.

Bounds Lesson

  1. IGCSE
  2. /Maths
  3. /Bounds

Step-by-step lessons on Edexcel IGCSE Maths Bounds. Each one builds up to exam-style questions. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.

Lessons