O-LevelMathematicsNumber4024/12 · May/June 2021 · Q43 Marks
Write 64785491 correct to the nearest million.
- (a)Write 64785491 correct to the nearest million.[1]
- (b)By writing each number correct to 1 significant figure, estimate the value of 67.8+49.5 0.187^2[2]
Mark scheme
Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.
- [1] (a) 65 000 000
- [2] (b) 70, 50 and 0.2 seen
- [2] (b) and final answer 3000
- [2] (b) B1 for two of 70, 50 and 0.2 seen
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