Reasoning, convincing and proving

You may have met Magic Squares, now meet an Anti-Magic Square. Its properties are slightly different - can you still solve it?

Can the pdfs and cdfs of an exponential distribution intersect?

Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

When is it impossible to make number sandwiches?

You'll need to know your number properties to win a game of Statement Snap...

Can you find different ways of creating paths using these paving slabs?

What is the largest number of intersection points that a triangle and a quadrilateral can have?

Are these statements always true, sometimes true or never true?

Are these statements always true, sometimes true or never true?