Place value

There are two forms of counting on Vuvv - Zios count in base 3 and Zepts count in base 7. Can you work out in which direction the Zios and Zepts were looking, based on the information you're given?

How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?

Can you reconstruct the long division calculation from the 'skeleton'?

Can you explain the surprising results Jo found when she calculated the difference between square numbers?

Can you produce convincing arguments that a selection of statements about numbers are true?

Can you create a Latin Square from multiples of a six digit number?

A 2-Digit number is squared. When this 2-digit number is reversed and squared, the difference between the squares is also a square. What is the 2-digit number?

What is the sum of all the digits in all the integers from one to one million?