## Category: Patterns and Properties

## 100 Square Spots

100 Square Spots. Interactive 100 square used for examining number facts and series up to a hundred Choose a colour, then start clicking on numbers. Click a number again to remove a spot. Hold down a menu colour to remove Read More …

## Sieve of Eratosthenes

## 100 Square – Splat Square – Primary Games

## GOT IT! – NRICH

## Button Beach Challenge – Ambleweb

## Function machine – Ambleweb

## Guess the Number – Ambleweb

## Mend the number square – BBC

## Mystic Rose – Count On

## Crazy Counting Machine – Crick

## Number maze – David Hellam

## Guess the number – A Blundred

Guess the number – A Blundred http://www.mathszone.co.uk/images/thumbimg-731.jpg Undo the operation to deduce starting number. Uses addition and subtraction facts, tables facts, doubles and halving, and one or two step problems to solve. Good mental starter. Levels for early years, KS1 Read More …