Write 4.305 × 104 as an ordinary number.
Write 0.00081 in standard form.
Calculate (7.2×103)÷(2.4×10−2)(7.2 \times 10^3) \div (2.4 \times 10^{-2})(7.2×103)÷(2.4×10−2) Give your answer in standard form.
261 exam-style questions on OCR GCSE Maths Standard Form. Each one has a worked solution and a mark scheme showing where the marks go.