Yes you do! In fact not just I. You move al l three down right after or before you move the units to the right.
You can make a table like this:
If 1 bag=5 pounds
Then 6 bags must equal six times the weight of the first bag
5 times 6=30
Your answer is reasonable because 5+5+5+5+5+5=30
a.k.a
=5 =30
It is 4pi/7, or b. Just want to help ;)
