I have created my own version of this ITP which allows you to find the difference between two 2-digit numbers and shows this on a number line.
View full screen in your browser. This ITP allows you to compare two rows of beads and to analyse the calculations they can represent. It can be used to promote the language of addition and subtraction, particularly the interpretation of difference. The ITP operates as a series of animations which show how the rows of beads can be represented by two number lines and then as a single number line with the difference indicated by a ‘jump’.
This resource is freely available to download from the archived Primary Framework site.
New Maths Curriculum:
Year 2 Block A: