In this super secret number puzzle, students work to solve problems related to ratios and proportions.
Students find the answers to each of the ten questions and then add their answers together – this is the super secret number. After a bit of time, I tell them what the super secret number should be. If their super secret number matches mine, they probably did their problems correctly.
This puzzle is probably best suited to geometry students, although algebra students would be able to solve all of the problems given with the piece of information that there are 180 degrees in the interior of every triangle.
As an alternative, I have also included a page with a QR Code. This QR Code leads to the super secret number. To add excitement, students can scan the QR Code instead of just having the teacher tell the class the Super Secret Number.
Answer key included.