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**This collection of resources encourages you to be playful with numbers.**

There are games that require you to think strategically, problems that challenge you to make conjectures and work systematically, and articles that offer insights into the structure of number.

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### Got It

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

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### Summing Consecutive Numbers

15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?

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### Missing Multipliers

What is the smallest number of answers you need to reveal in order to work out the missing headers?

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### Factors and Multiples Game

A game in which players take it in turns to choose a number. Can you block your opponent?

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### Product Sudoku

The clues for this Sudoku are the product of the numbers in adjacent squares.

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### American Billions

Play the divisibility game to create numbers in which the first two digits make a number divisible by 2, the first three digits make a number divisible by 3...

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### Generating Triples

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?