## Number Explorer – Visnos

Number Explorer Select a number and investigate its factors, prime factors, divisibility etc. Great way for upper KS2 to investigate number

## 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

Sieve of Eratosthenes Named after the Greek Mathematician. This classic method of finding prime numbers is also great for teaching about factors and multiples. The visnos sieve allows for multi colored squares this allows identification of any numbers prime factors.

## Splat Square 100 – Primary Games

Splat Square 100 – Primary Games. A number square. Set task and children can print out finished square

## GOT IT! – NRICH

GOT IT! – NRICH http://www.mathszone.co.uk/images/thumbimg-69l.jpg Add numbers to reach exactly the target number – before the other player or computer

## Button Beach Challenge – Ambleweb

Button Beach Challenge – Ambleweb http://www.mathszone.co.uk/images/thumbimg-72f.jpg Work out what numbers the buttons represent and fill in the totals of the grid

## Function machine – Ambleweb

Function machine – Ambleweb http://www.mathszone.co.uk/images/thumbimg-71Y.jpg A variety of options for single and two step function machines

## Guess the Number – Ambleweb

Guess the Number – Ambleweb http://www.mathszone.co.uk/images/thumbimg-70g.jpg Guess the number, computer says too high or low and refines guess possibility by reducing the range to guess from.

## Mend the number square – BBC

Mend the number square – BBC http://www.mathszone.co.uk/images/thumbimg-65B.jpg Put the missing numbers back in the number square. Yr R/1/2

## Mystic Rose – Count On

Mystic Rose – Count On http://www.mathszone.co.uk/images/thumbimg-649.jpg Interactive mystic Rose drawer.

## Crazy Counting Machine – Crick

Crazy Counting Machine – Crick http://www.mathszone.co.uk/images/thumbimg-74a.jpg Can you reach the target number in as few clicks as possible? Makes use of doubling and halving strategies in working towards a target number.

## Number maze – David Hellam

Number maze – David Hellam http://www.mathszone.co.uk/images/thumbimg-76l.jpg Move around a maze collecting numbers, plus and multiplication signs to make a target of 100 in as short a time as possible.

## 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 …

## Magic Squares – A Blundred

Magic Squares – A Blundred http://www.mathszone.co.uk/images/thumbimg-754.jpg Fill in the magic square to make the given total – 15, random or set your own total. Computer does the calculating.