Mathematics 0580 · IGCSE · Estimation

Estimation — practice question

(main)[2]

Estimate the value of $\dfrac{10.3 \times 19.5}{88.9 - 43.2}$, without using your calculator, after rounding each number to 1 significant figure. Show all your working.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Produces the correct fraction ${10\times20}{90-40}$” …

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