Is this possible?

Is there a way to simplify a subdivide? Like, suppose I subdivided the startup cube into sixteen subdivisions on each side, but then I wanted to put it back to it’s original shape (without hitting control Z or starting a new cube all over) - is there a way to get it back down to one square on each side?

Thanks,

Mr Head

You can delete edge loops but you’ll have to do one at a time, just select a loop useing alt-rmb then press x to delete and choose edge loop from list.