Name_________________________________________Class Code________
Weekly  Challenge
January 3-7, 2005
bird1
bird2
bird4
bird5

I noticed one bird at the bird feeder on Monday.  On Tuesday there were four birds at the feeder.  On Wednesday nine birds visited the feeder.  I counted sixteen birds at the feeder on Thursday.  If this pattern continues, how many birds came the feeder on Friday?
Show your work.












For 4th and 5th graders: How many birds came to the feeder on Sunday?