2 out of 3
Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
1 out of 3
Class 5 were looking at the first letter of each of their names. They created different charts to show this information. Can you work out which member of the class was away on that day?
1 out of 3
When are Roman numerals shorter than Arabic numerals for the same number?
1 out of 3
2 out of 3
Each digit of a positive integer is 1, 2 or 3, and each of these occurs at least twice. What is the smallest such integer that is not divisible by 2 or 3?
2 out of 3
When coins are put into piles of six 3 remain and in piles of eight 7 remain. How many remain when they are put into piles of 24?
1 out of 3
Weekly Problem 23 - 2010
These numbers have been written as percentages. Can you work out which has the greatest value?
1 out of 3
A pattern repeats every six symbols. What are the 100th and 101st symbols?
