Mathematics GCSE
estimating roots
What estimating roots means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of estimating roots
Check what you remember
Read the wording for your board, then hide it and explain estimating roots in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
Placing an inexact root between two values you already know, by trapping it between neighbouring powers and reading the answer off.
Topics that use estimating roots
- Number - Structure and calculation (Pearson Edexcel GCSE)
Related terms
- Base
- cancelling common factors
- Circumference
- Counting without replacement
- denominator
- equivalent fractions
- Error interval
- Exact form (non-decimal answers)
Using estimating roots in the exam
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