Mathematics 4024 · O Level · The four operations

The four operations — practice question

(a)[1]

Insert a single pair of brackets into this calculation so that it becomes correct: $4 + 4 \times 4 - 4 = 4$.

(b)[1]

Calculate $-6 \times (-3 + 7)$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Therefore, $4 + 4 \times (4 - 4) = 4$.” …

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