math and science education math stories



Lesson:
Penny-A-Day
Grade Level: 3-5
Skills: addition, number sense


You win a contest and you can choose from two prizes. The prizes are 50 cents a day for 14 days, or a penny a day for the 1st day, which doubles every day for 14 days.

Which prize you would choose? Explain why.


Challenge:
How many days would you need to keep doubling pennies before you
got to at least 50,000 pennies?


Challenge 2:
How many days would you need to keep doubling pennies
before you got to 1000 dollars?




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