Mathematics 4024 · O Level · Standard form

Standard form — practice question

(a)[1]

Write $42\,000\,000$ in standard form.

(b)[2]

Evaluate $(1.3 \times 10^{-4}) + (7.4 \times 10^{-3})$. Present 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: “The result is $4.2\times10^7$.” …

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