Mathematics 4024 · O Level · Standard form

Standard form — practice question

(a)[1]

Express the number $0.00012$ in standard form.

(b)[2]

In standard form, evaluate $5.5\times10^7-2.1\times10^6$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The correct answer is $1.2 \times 10^{-4}$.” …