Part whole models are used to support students in their work throughout this resource where single digits are subtracted from four digit numbers.
The worksheet builds in difficulty, beginning with subtractions where no exchanges are necessary. Exchanges are first introduced in calculations where a single digit is subtracted from a multiple of 10. Questions progress to those where subtracting a single digit leads to change in tens, hundreds or even in the thousands. There are 12 part whole models to complete in total.