After some matches were played, most of the information in the
table containing the results of the games was accidentally deleted.
What was the score in each match played?
Using the 8 dominoes make a square where each of the columns and
rows adds up to 8
There are exactly 3 ways to add 4 odd numbers to get 10. Find all
the ways of adding 8 odd numbers to get 20. To be sure of getting
all the solutions you will need to be systematic. What about a
total of 15 with 6 odd numbers?
This problem is taken from the UKMT Mathematical Challenges.