GCSE · Standard form

Calculating in standard formExam-style questions

Why multiplying and dividing in standard form is just the index laws, why the answer often needs re-standardising, and why adding needs the powers aligned first.

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19 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    Work out (3×104)×(2×105)(3 \times 10^4) \times (2 \times 10^5). Give your answer in standard form.
    Level 3 · 2 marksTry it
  2. 2
    Work out (2×103)×(4×106)(2 \times 10^3) \times (4 \times 10^6). Give your answer in standard form.
    Level 3 · 2 marksTry it
  3. 3
    (a) Work out (4.8×105)÷(1.2×10−2)(4.8 \times 10^5) \div (1.2 \times 10^{-2})

    Give your answer in standard form. (2 marks)
    (b) Work out (3×104)+(4×103)(3 \times 10^4) + (4 \times 10^3)

    Give your answer in standard form. (1 mark)
    Level 3 · 3 marksTry it
  4. 4
    Work out 4.6×105+7.9×1034.6 \times 10^{5} + 7.9 \times 10^{3}

    Give your answer in standard form.

    (3 marks)
    Level 3 · 3 marksTry it