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Number Knowledge (Powers (A number multiplied by itself once is squared, A…
Number Knowledge
Powers
A number multiplied by itself once is squared
A number multiplied by itself three times is cubed
4x4x4x4x4x4 = 4^6
^ means to the power of
To the power of means multiplied by itself
A Way of writing repeated multiplication
Roots
Cubed roots are the number divided by itself three times
Square roots are the number divided by itself two times
Will undo a power
The opposite to a power
BEDMAS
Brackets left to right first
Exponents/powers left to right second
Division and Multiplication left to right third
Addition and Subtraction left to right last
Common Multiples
Multiples are the product of a times table
When you times one number by another you get a multiple
Common multiples are numbers that can be multiplied by two or more numbers
Numbers
Prime Numbers
A prime number has only two factors
Two factors are one and the number
All prime numbers are odd apart from 2
1 is not a prime number
Composite Numbers
Composite numbers have many factors
Any number that is not prime is a composite number