Write a number in each box to make the calculation correct.
0000−18=−7\boxed{\phantom{0000}} - 18 = -70000−18=−7
4=−9+00004 = -9 + \boxed{\phantom{0000}}4=−9+0000
242 exam-style questions on OCR GCSE Maths Solving One Step Equations. Each one has a worked solution and a mark scheme showing where the marks go.