This KS1 Reasoning How Many are Left? Test Practice uses the 2016 SATs question about finding how many are left for the basis of the resource. The resource has been differentiated four ways so that you can provide access and challenge across the classroom all around one specific question type. Each differentiated resource is made up of twelve questions and use skills such as subtracting a one-digit number from a two-digit number, as well as subtracting with exchanging (the most challenging). An answer sheet has also been provided.