


Challenge 


Integer:
The set of numbers ...,3,2,1,0,1,2,3,… 
The Last Digit: Given a number raised to a large power, find the one's digit of the expansion.
Want to Be a Millionaire?: If a bank doubles your money, how long will it take you to become a millionaire?
Planning Cruises: Determine when three cruises with different lengths will leave on the same day.
Consecutive Sum: Given the sum of consecutive numbers, find the least of these numbers.
Minimizing Products: Find two positive integers with a given sum and which have the smallest product.
Difference of Squares: Find positive integers which can be written as sum or difference of squares.
Save the Princess: Help Princess Stunning find a particular perfect square number.
Greatest Product: Find the greatest possible product of two natural numbers who have a particular sum.
Integer Function: Find the smallest integer by substituting numbers into a fraction


