Friday 26 June 2009

Tuesday 23 June 2009

Index laws

Number line

To download this number line click on the link to the scribd website and click on the download tab at the top of the document.

Number Line

Directed numbers

Integers are whole numbers, their negative and zero- they are not fractions or decimals.



Adding and subtracting negative numbers


Multiplying negative numbers

Prime factorisation - without the trees

Prime factors - using a factor tree




Prime Numbers - The Sieve of Eratosthenes

Prime numbers

Least (lowest) common multiple

This clip shows two ways to find the LCM (least common multiple) of two numbers

Highest common factors