Activities in this teaching pack include a template and set of cards to identify and record sums that are ten less than different three digit numbers by arranging the hundreds, tens and ones in each number using a place value diagram to illustrate changes to the values of the each number.

The interactive presentation gets the children to explore how to record number sums that are ten less than different three digit numbers.

This lesson is part of a maths scheme of work to get the children to explore and record how to order three digit numbers by the place value of their digits and how the digits in a number change their numerical values when finding ten and one hundred more or less. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.