Mathematics 4024 · O Level · Standard form

Standard form — practice question

(a)[1]

Express $0.000257$ in standard form.

(b)[2]

Calculate $\dfrac{2 \times 10^{4}}{4 \times 10^{-5}}$. Give your answer in standard form.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “In standard form, the answer is $2.57\times10^{-4}$.” …

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