Activities in this teaching pack include a differentiated set of worksheets to solve number word problems to add pairs of three and four digit numbers with one exchange between place value to calculate how much stock is for sale in a supermarket using formal written calculations.

The interactive presentation gets the children to explore how to calculate the stock levels of different products in a supermarket by adding pairs of three and four digit numbers.

This lesson is part of a maths scheme of work to get the children to investigate different ways of adding three and four digit numbers using mental and formal written calculations with exchange between place value. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.