2:21 How to Estimate the Square Root of Non-Square Numbers (2026/27 exams)
Crisp UK method: trap a root between the two nearest square numbers to estimate it.
Estimate roots
Estimate roots of a given positive number
4 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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4:34 GCSE Maths: N6h-19 Estimating √a
Focused UK GCSE clip on estimating the square root of a number.
6:30 How to Estimate Square Root
Clear worked example estimating the square root of 34 using nearby square numbers.
4:22 Estimating Square Roots
Professor explains estimating the square root of 15 clearly and concisely.