Mini Maths Tutorial: Addition Vs Subtraction an inverse relationship

Learn to understand what is meant by an inverse relationship between addition and subtraction and how we can use it to solve problems. Year 3 AC9M3A01:recognise and explain the connection between addition and subtraction as inverse operations, apply to partition numbers and find unknown values in number sentences Year 2 AC9M2A02:recall and demonstrate proficiency with addition facts to 20; extend and apply facts to develop related subtraction facts