Maths Homework Year 3 Maths Division - In Stage 3, children are taught to use a number line to support them in solving a division calculation. The purpose of a number line is to help children visualise the relationship between multiplication and division, and how they are inverse operations - Parent, Teacher and Child support guide. • Maths Homework Year 3 Maths Division - Sta... Help support your child with their maths learning and to achieve their end of year expectations.