Write 3.08 × 10-5 as an ordinary number.
Write 5 million in standard form.
k k\,k is an integer.
Calculate (6.3×105)×(2.5×10k)(6.3 \times 10^5) \times (2.5 \times 10^k)(6.3×105)×(2.5×10k)
Give your answer in terms of k k\,k in standard form.
261 exam-style questions on Eduqas GCSE Maths Standard Form. Each one has a worked solution and a mark scheme showing where the marks go.