Here's fun fun number trick for you guys...-_-;
(You need one of your friends, and a calculator for solving it .)
1. Have your friend think of a number between 1 and 100, and to keep it a secret.
2. Now, using your calculator, take your age, multiply by 2, add 5, multiply by 50, and subtract 365.
3. Next, keep that number from the last step on the calculator, hand the calculator to your friend, and tell them to add their secret number, then add 115.
4. The first half of the resulting number is your age, and the other part of the number is your friend's secret number!
For example....
your friend's secret number was 55.
you take your age (14 or 15 or more)
multiply by 2 -> 14 times 2 = 28
ten add 5 -> 28 + 5 = 33
again , multiply the result by 50 -> 33 times 50 = 1650
and lastly subtract 365 from it -> 1650 - 365 = 1185
For next step,
you tell your friend to add his/her secret number to
your result. then add 115. -> 1185 + 55 + 115 = 1455
Neeat,, huh?
Welcome to a world where creativity, ingenuity, and mathematics mesh together to create Grade 10 Precalculus math.
