Mathematics 0580 · IGCSE · Estimation

Estimation — practice question

The equation is $p = \dfrac{1.6 + 9.6^2}{5.9 - 4.3}$.
(a)[2]

Using each number correct to 1 significant figure, find an estimate for $p$. Show every step of your working.

(b)[1]

Calculate the exact value of $p$ without rounding.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The rounded expression is $\frac{2+10^{2}}{6-4}$.” …

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