The number 2.525252525252.... can be written as a fraction. What is
the sum of the denominator and numerator?
What is the last digit of the number 1 / 5^903 ?
Weekly Problem 24 - 2012
Can you put these very close fractions into order?
Can a set of pieces solve in more than one way ?
How does our answer to these questions change for different size jigsaws.