Complete the pyramids to figure out the punchline to a lame joke. This involves simplifying indices and could be used as a plenary or starter, although that is clearly up to you.
These are standard pyramids that lead to the punchline for a cheesy joke which should hopefully make them a little more desirable, but you never know.
These are calculation pyramids but they give a punchline to a joke. These are designed to be done without a calculator but it is clearly up to you.