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Practice Questions and Resources
Everything you need to master this topic.

Workpack
Download the printable workpack with exam style questiuons

Solutions
Download the full worked solutions to every question.
Key Points
Round numbers before calculating.
Usually round to 1 significant figure, unless instructed otherwise.
Carry out the calculation using the rounded numbers.
Estimates are useful for checking calculator answers.
Keywords: estimating calculations, approximation, significant figures, checking answers, GCSE maths.
Step-by step tutorial
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