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Bedtime Math for October 27, 2018

By Laura Overdeck | Daily Math, Food

For more than 100 years, people have been pulling apart Oreos to lick off the cream inside. Have you ever pried off one wafer so perfectly that all the cream sticks to the other wafer? Well, scientists at Princeton University figured out how to do it perfectly every time. Turns out that the Oreo-making machine squirts warm cream filling onto the bottom cookie. That filling oozes into the cracks, making it stick well. The machine drops the second wafer on top after the cream has cooled, so that wafer isn’t glued on as well. The machine stacks all the Oreos facing the same way, so once you figure out the first cookie, you can pick the right wafer to twist every time!

Wee ones: What shape is the cookie part of an Oreo?

Little kids: Each Oreo is cookie, cream, cookie. If you stack 1 Oreo on another, how many layers of cookie do you have? Bonus: How many more layers of cookie than cream do you have?

Big kids: If a box of Oreos has 2 rows of 16 Oreos each, how many Oreos are there in total? Bonus: The scientists bought giant boxes of 500 Oreos each to study them. How many Oreos are in 4 boxes that size?

The sky’s the limit: If in a stack of 100 Oreos, every 4th twisted Oreo (starting with the 4th) makes a popping sound, and on every 5th Oreo (starting with the 5th) the cookie cracks, how many cracked Oreos don’t say pop?