Take any two digit number, for example 58. What do you have to do to reverse the order of the digits? Can you find a rule for reversing the order of digits for any two digit number?
What is the sum of all the digits in all the integers from one to
Find the values of the nine letters in the sum: FOOT + BALL = GAME
Each hour, Tock's watch gains three minutes on Tick's watch. It will, therefore, take 20 hours before it is one hour ahead of it.
This problem is taken from the UKMT Mathematical Challenges.