Write 0.0065 as 6.5×10n6.5 \times 10^n6.5×10n, where n n\,n is an integer.
Hence write 0.0065 in standard form.
Write 3 × 104 as an ordinary number.
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.