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===Meaning===
To '''round''' is to reduce the number of significant figures in a number to include only the figures representing the largest numbers.
===References===
====OCR====
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Rounding, page 7, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR '']