Write 42 900 000 in standard form.
Write 3.61 × 10-3 as an ordinary number.
Practise CIE IGCSE Maths Standard Form with exam-style questions for Core and Extended tier. 23 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.