Can you arrange the numbers 1 to 17 in a row so that each adjacent pair adds up to a square number?

Discover a way to sum square numbers by building cuboids from small cubes. Can you picture how the sequence will grow?

Sets of integers like 3, 4, 5 are called Pythagorean Triples, because they could be the lengths of the sides of a right-angled triangle. Can you find any more?

How many four digit square numbers are composed of even numerals? What four digit square numbers can be reversed and become the square of another number?

Robert noticed some interesting patterns when he highlighted square numbers in a spreadsheet. Can you prove that the patterns will continue?

What is the value of the digit A in the sum below: [3(230 + A)]^2 = 49280A

Take a triangular number, multiply it by 8 and add 1. What is special about your answer? Can you prove it?

Can you find some Pythagorean Triples where the two smaller numbers differ by 1?

Show that 8778, 10296 and 13530 are three triangular numbers and that they form a Pythagorean triple.

A woman was born in a year that was a square number, lived a square number of years and died in a year that was also a square number. When was she born?

Using your knowledge of the properties of numbers, can you fill all the squares on the board?