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Birthday Paradox 
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Joined: Tue Nov 21, 2006 2:59 pm
Posts: 26
Post Birthday Paradox
Numbers are so important in English yet very little teachers focus on them. I think cuz most ppl don't like math. But numbers are in phone numbers, address, prices, birthdays, and so on. So why don't we focus more on numbers? Numbers can be fun if it's in a game or puzzle. I use this to paradox from the internet and it works for both kids and adults.

Step 1.) First write down your birthday month.
January = 1, Feburary=2, March=3, etc.

Step 2.) Next multiply that by 5

Step 3.) After add 6

Step 4.) Then multiply that total by 4

Step 5.) Afterwards add 9

Step 6.) Then multiply this total by 5 once again

Step 7.) Finally, add the day you were born on.
If they were born on the 18th, they add 18, etc.

Step 8.) Now tell me the final number.

**Now you know the final number subtract it by 165.
The first number(s) should be the month.
The last 2 digits should be the day they were born.

Ex. 1120 In this case, (11) November 20th.

This will definitely freak them out.

Thu Dec 07, 2006 11:09 am

Joined: Tue Nov 14, 2006 9:59 pm
Posts: 16
I gave this a go today for second and third grade junior high school students. They really enjoyed it!!

Does anyone else know where to find any more of these games?

Fri Dec 15, 2006 1:10 pm
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