Activity Library

Which is a better deal, cloth or disposable diapers? How much did you cost your parents in diapers? In the future, how much could your kid's diapers cost?...

Though it is not our usual real-world application, we always have time for some fun math puzzles! In this updated activity, students will explore the puzzle of magic...

For Father's Day (Links to different activities) Thank you, mother and father, for all of those diapers - Students compare the cost of buying disposable versus cloth diapers....

Brian has introduced systems of equations with easy, motivating problems that deal with the cost of stadium purchases for food and souvenirs. These systems of equations puzzles are...

Ooops! I was supposed to buy 4 adult and 2 children tickets, but I accidentally entered four children and two adults ... :) Can you figure out how...

We visited a Chic-fil-A recently. We had a great meal and my son loved playing in the play area. While at the play area I noticed two different...

This activity has been updated (2026). See the new activity here: https://www.yummymath.com/post/light-bulb-cost-comparison/ There's a lot of misinformation out there about the cost to consumers of CFL and LED...