Activities in this teaching pack include a set of differentiated worksheets to solve problems about objects connected to a seaside visit when using rounding and compensation to calculate the difference between pairs of numbers working with informal subtraction calculations.

The interactive presentation gets the children to explore how to use rounding and compensation to calculate the difference between pairs of numbers.

This lesson is part of a maths scheme of work to get the children to explain and model some of the informal and formal written calculations skills that can be used to find the difference between pairs of two and three digit numbers. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.