This Grade 2 subtraction pack uses the CPA approach and partitioned subtraction to teach students how to subtract two-digit numbers within the range 1–100. Working alongside a friendly robot guide, students explore the strategy of subtracting tens first, then ones, through six distinct activities using place value grids, number lines, hundred squares, cherry diagrams with tens and ones cubes, and arrow cards. Each activity presents the same mathematical concept but through different visual repre