19 addition and subtraction activities all in one place, mix and match them to teach the combination of skills suited for each of the ability groups in your class. Two weeks’ worth of Maths lessons ...

A thorough understanding of addition and subtraction requires knowledge of the inverse relation between these operations. According to Piaget (1952), any inverse relation poses a significant challenge ...

3 Worksheet Sets (11 pages in total plus answers) for Y4 or older pupils. Set 1 Differentiated: 4 levels of challenge.Answers included. Pupils check the reasonableness of bar models and then use them ...

Learn about inverse operations with Zoe Kleinmann. Learn about inverse operations while playing a math game with Zoe Kleinmann and Milena. Explore how addition and subtraction are inverse operations.