O-LevelMathematicsNumber4024/11 · Oct/Nov 2022 · Q103 Marks
10 (a) Write the number 320000000 in standard form. (b) Evaluate (2×10⁻³)/(4×10⁹). Give your answer in standard form.
- (a)Write the number 320000000 in standard form.[1]
- (b)Evaluate (2×10⁻³)/(4×10⁹). Give your answer in standard form.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2022). The mark or mark type is shown in brackets.
- [1] 3.2×10⁸
- [2] 5×10⁻¹³
- B1 for 0.5×10⁻¹² oe or 5×10⁻¹×10⁻¹² seen
- or for answer A×10⁻¹³ with 1 ≤ A < 10
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