Mathematics 4024 · O Level · Standard form

Standard form — practice question

(a)[1]

Write the number 0.0142 in standard form.

(b)[2]

The numbers in the calculation are presented in standard form. $(3.2\times10^{-4})\times(x\times10^y)=2.6\times10^3$. Find the value of $x$ and the value of $y$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is $1.42\times10^{-2}$.” …

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