Maths
Estimation & Degree of Accuracy
Use estimation to check answers to calculations and determine, in the context of a problem, an appropriate degree of accuracy.
MathsAge 11+25 minutes
What this topic covers
- Estimate multi-step calculations by rounding each number first.
- Check each step of a multi-step problem with the inverse.
- Decide the degree of accuracy a context requires (exact, nearest pound, nearest thousand).
- Avoid rounding intermediate steps and spurious precision.
Core concept summaries
Key ConceptsEstimate the Whole ProblemCheck Every StepDegree of Accuracy in ContextTwo Accuracy Traps
Practice formats pupils may meet
NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.
clozematchingquiz