Looking to extend your students' awareness of number or general mathematical thinking? Number Bustin'. involves showing a given number in as many ways as you can. it is an open ended task which is appropriate for all levels of knowledge and is easily differentiated.
Included is a number busting sheet for each of the numbers 1-40. Each bundle of 10 is differentiated according to students assumed knowledge. Each sheet provides a free space where students are able to show any knowledge they have about the number that they were not able to in the top section.