O-LevelMathematicsNumber4024/12 · May/June 2022 · Q123 Marks
Write 0.00203561 correct to 3 significant figures.
- (a)Write 0.00203561 correct to 3 significant figures.[1]
- (b)By writing each number correct to 1 significant figure, estimate the value of (√3.93 × 63.7) / 0.425[2]
Mark scheme
Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.
- [1] (a) [0].00204 or 2.04 × 10⁻³ cao
- [2] (b) 4, 60 and 0.4 seen and final answer 300 B1 for two of 4, 60 and 0.4 seen
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