Or search by topic
Congratulations to all of you who correctly gave the solution to this problem. There are too many of you to list here.
Harry of CPS was the first to send in a correct answer.
A team from Oatlands Junior School went on to explain why 15:43 our time is 6:54 French Decimal Time.
Make a set of numbers that use all the digits from 1 to 9, once and once only. Add them up. The result is divisible by 9. Add each of the digits in the new number. What is their sum? Now try some other possibilities for yourself!
Which set of numbers that add to 100 have the largest product?
Where will the point stop after it has turned through 30 000 degrees? I took out my calculator and typed 30 000 ÷ 360. How did this help?