Write a number in each box to make the calculation correct.
9+0000=229 + \boxed{\phantom{0000}} = 229+0000=22
20−0000=620 - \boxed{\phantom{0000}} = 620−0000=6
283 exam-style questions on Eduqas GCSE Maths Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.