This mega-bundle contains two Power Points; one on column addition and one on column subtraction. Both use clear visuals to give children a relational understanding of both operations. Both Power Points fully cover bridging and exchanging. They are very engaging for the children as they must defeat Dr Doom and work out secret codes on the worksheets provided which correspond to the Power Points. Finally, two Dr Doom games have been thrown in which are both editable meaning they can constantly be reused. I guarantee the children will love these!