Place value

You have two sets of the digits 0-9. Can you arrange these in the five boxes to make four-digit numbers as close to the target numbers as possible?

Find out what a Deca Tree is and then work out how many leaves there will be after the woodcutter has cut off a trunk, a branch, a twig and a leaf.

Can you show that 1^99 + 2^99 + 3^99 + 4^99 + 5^99 is divisible by 5?

This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?

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

There are nasty versions of this dice game but we'll start with the nice ones...

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?

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?

There are six numbers written in five different scripts. Can you sort out which is which?