GCSE · Rounding & bounds

Rounding and significant figuresExam-style questions

Why significant figures count information rather than decimal places, why the count starts at the first non-zero digit, and why place value must survive the rounding.

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16 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAll Level 1 Level 2 Level 3 Level 4 Level 5

1
$k = 6.0$ , correct to $1$ decimal place.

(a) Write down the error interval for $k$ .

(b) Maya says, " $k$ could be exactly $6.05$ ." Explain why Maya is wrong.
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