36 x 25 = 900 480 x 25 =12,000 924 x 2.5 = 2,310 Can you see any tricks for doing these calculations in your head? The activity: ImpressYourParents-part2.pdf
Mental math tricks – part 2
Tag: 5.NBT
Refugees from Ukraine
Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing. How do these numbers compare with other tragic evacuations. While interpreting graphics and working with these huge numbers, bring your student’s opinions and concerns into your math class.
When will WORDLE run out of words?
Have you played WORDLE yet? Why do you suppose that this game is so popular? When will there be no new 5-letter words to try?
Iditarod 2022 – The Last Great Race on Earth
Students do some rate, distance, and hardship comparisons to decide if they agree that the Iditarod is really the Last Great Race on Earth.
February 22, 2022
Why do you suppose we are posting this date as a topic for YummyMath? What do you think is so special about this date? Does this happen often? When might a similar day occur?
Spider-Man continues
How much did it cost to make?
How much will it gross?
Is the Spider-Man phenomena a guarantee for success?
How would you compare all of the Spider-Man movies?
Super Bowl Numerals
Introduce Roman numerals to your class. In this activity students learn the rules for evaluating Roman numerals, decipher copyright dates, see how Roman numerals are used today, and do some strange looking arithmetic and surprisingly easy computation.
Bowl by the hour or the game?
Students consider the posted pricing of this bowling alley. What must they consider when choosing how to pay? What do you expect will be the best deal? How do you know?
Holiday shipping
These two companies carry a lot of our packages. What can you tell about them by the numbers? Does delivering a little percent late really equal to not many packages late?
Hanukkah is almost here!
Egad, Hanukkah begins this year on Sunday evening, November 28th. I think it was in December last year. Why isn’t it always on the same date? Students look at the Hebrew calendar and appreciate the incredible mathematics involved in creating a…
Chuck E. Cheese needed to shred
Chucky E. Cheese needed to shred 7 billion tickets at a cost of 2.3 million dollars. Was this the real cost of shredding them?
How much did the tooth fairy give you when you lost a tooth?
What was the going tooth rate in your house? Do you think that, on average, you were paid well or were you disappointed? Was your first tooth lost especially remunerative? Look at historical averages and check out how you did.
Lots of pieces
Brian has a lot of puzzles. His family must love working on them. What do you wonder about his puzzles? What do you notice? Make an educated guess, about how many pieces are in all of these puzzles? Can you…
Holiday soda displays
The holidays are coming! We found these timely soda displays made up entirely of 12-pack of Coca-Cola products. What questions do you have? Clicking on either image will show them larger in their own windows. Start out the activity by…
USPS needs help!
Students learn how the Postal Service is funded and try to decide how the USPS could earn more or spend less in their operation. They finally get to think about whether the post office should be a government run service or a self-sustaining business.