Activities in this teaching pack include a set of cards to select and add different numbers of thousands, hundreds, tens and ones to use when changing numbers, a worksheet to select thousands, hundreds, tens and ones to practise adding to three digit and four digit numbers and a template to record how to change three digit and four digit numbers by adding other thousands, hundreds, tens and ones.

The interactive presentation gets the children to explore how to change to different four digit numbers when adding ones, tens, hundreds and thousands.

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.