Jeannine is bored playing with blocks while babysitting
her baby brother. To keep herself amused, she decides
to stack up all the blocks so that each row has
one less block than the row below. There are a total
of 55 blocks, and Jeannine wants to end up with
just 1 block on top. How many should she put in
the bottom row?
The bottom row will have 10 blocks.
Start at the top and work backwards, listing
rows and the total number of blocks used