Work out (6.7×104)×(3.4×10−8)(6.7 \times 10^4) \times (3.4 \times 10^{-8})(6.7×104)×(3.4×10−8) Give your answer as an ordinary number.
23 exam-style questions on Edexcel IGCSE Maths Standard Form. Each one has a worked solution and a mark scheme showing where the marks go.