FIRST ONE I FOUND
Ask somebody to think of a number and keep it secret.
Then ask that person to double the secret number
then multiply by 5.
Ask for the total.Whatever the total is,
knock off the last digit and you will have the secret number the person mentally chose at the start.
SECOND ONE I FOUND
Take a number.
Double it.
Add 12.
Subtract 4.
Divide by 2.
Subtract your original number.
Your answer should be 4.
Welcome to a world where creativity, ingenuity, and mathematics mesh together to create Grade 10 Precalculus math.
