OCR GCSE Biology B · J257
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Significant FiguresUsing an appropriate number of significant figures communicates the result honestly.
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GCSE Biology · key term
A digit that contributes to the stated precision of a measured or calculated value, counted from the first non-zero digit.
Used by OCR
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Significant FiguresUsing an appropriate number of significant figures communicates the result honestly.
Count significant figures from the first non-zero digit, not from the decimal point.
For a calculated result, the usual GCSE science convention is to use the same number of significant figures as the measured input with the fewest significant figures.
Use standard form to make trailing zeros unambiguous: for example, has two significant figures.
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