This task is from Tools 4 NC Teachers. It provides opportunities to practice estimation, addition, and subtraction, in the context of data displayed in bar graphs. 

Task Preview (graph can be viewed by downloading the file) 

Part 1:  The graph shows football attendance at a local high school. Put the number of people at each game above each bar. The attendance was always a multiple of 10.

To the nearest hundred what was the total attendance for the 4 games?

What was the actual attendance for the 4 games? 

Was the estimate higher or lower than the actual attendance?