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GCSE Chemistry · key term
The number of digits written after the decimal point.
Used by OCR
Specification CM3.1iii, CM5.1ii · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Significant FiguresSignificant figures are not the same as decimal places.
The number of digits written to the right of the decimal point.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Significant figuresDecimal places are counted from the decimal point, whereas significant figures are counted from the first non-zero digit. This matters especially for values below 1.
Do not confuse significant figures with decimal places: 0.00457 has three significant figures but five decimal places.
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