I couldn’t help but use the awesome footage I got at the Arcade for a follow up task.  Use this after students have completed the first Arcade task. This task could be used for CCSS 4.OA.A.3 or 5.OA.A.1 (MLS 4.RA.A.2 or 5.RA.B.3).

So you figured out how many tickets they got…what did they buy?  The only setup you need is that there were two boys and they split the tickets equally among them.

Act 1:

Act 2:

If you want to dial this activity in a bit, you could add that they bought six items between them.  You could further narrow the focus by saying they both bought the same items…but what’s the fun in that???

Act 3:

There are three different reveals here.  Choose the first to perform another calculation and answer the additional questions.  The second and third image show the total cost of the items they purchased.

Did they buy what you thought they would?

How much did they spend?  Did they have any tickets left?  How many?

Were you correct?  Was your answer possible?  Are there other combinations they could have bought?

(You couldn’t see the ball on the left so I had to add one in using Google Drawings – that’s the reason it looks out of place!)