O-LevelMathematicsNumber4024/11 · Oct/Nov 2022 · Q54 Marks
5 (a) Write 306.248 (i) correct to 2 decimal places, (ii) correct to 2 significant figures. (b) By writing each number correct to 1 significant figure, estimate the value of 9.37² – √1046.
- (a)(i)correct to 2 decimal places,[1]
- (a)(ii)correct to 2 significant figures.[1]
- (b)By writing each number correct to 1 significant figure, estimate the value of 9.37² – √1046.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2022). The mark or mark type is shown in brackets.
- [1] 306.25 cao
- [1] 310 cao
- [2] 9 and 1000 seen and final answer 71
- B1 for 9 and 1000 seen
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