This activity is for students to use when working independently of the teacher in class and as homework to practice number properties.
- Solve addition and subtraction using mental strategies.
- Explain how a mental strategy works using an example.
Addition and subtraction, as appropriate to the learning of the group.
- Activity with student marking sheet (PDF or Word).
Prior knowledge
- Basic addition and subtraction facts.
- Recent experience exploring a range of addition and subtraction mental strategies.
Background
This activity produces a wall display involving revision of addition and subtraction strategies.
Comments on the Exercises
Students work in small groups to explain how a range of addition and subtraction mental strategies work by providing a worked example