Write 450 4\sqrt{50}\,450 in the form k2k\sqrt{2}k2, where k k\,k is an integer.
Practise OCR GCSE Maths Surds with exam-style questions for Foundation and Higher tier. 80 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.