shapes and maths
360 circle full circle180 circle semi-circle
90 circle quarter circle
8th of a circle is 45
= this is parrallel
/ this is oblique
- this is horizontal
prime number
A prime number that can be divided evently by only 1 into itself.
For example 2,3,5,7,and 11
composite nunmbers
A composite number is a number that can be divided by more than 1 and itself,i.e it has more than 2 divisors.
For example:
4,6,8,9and 10
factors
A factor is a number is a number that will divide evently into that number.
For example:
The factors of 12 are 1,2,3,4,6 and 12.
multiples
A multiple of a number is a number multipled by other whole numbers.
For example:
The multiples of 5 are 5,10,20,25,30...
square and rectangular numbers
A square number is a number is a number that can form the shape of a square
For example:
4,9,16,25...
A rectangular number is a number that can form the shape of a rectangle.
For example:
6,8,10,12...
odd and even numbers
odd numbers end in 1,3,5,7 or 9
for example 95,317,821,9999
even numbers end in 0,2,4,6 or 8
for example 54,720,1636,9998
multipication and division facts
Multiplication and division facts are linked together.
if you know one multiplication fact you also have the ability to know three other related facts.
nets
nets are shapes bases that are open for example the net of an open box example: the net of a pyramid is a square in the middle and triangles round each side.