Write a number in each box to make the calculation correct.
8+0000=178 + \boxed{\phantom{0000}} = 178+0000=17
15−0000=615 - \boxed{\phantom{0000}} = 615−0000=6
108 exam-style questions on Edexcel GCSE Maths Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.