Maths Unit 1

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LCM and HCF

LCM = Everything in the venn diagram multiplied together 

HCF = Everything in the middle of the venn diagram multiplied together

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Laws of Indices

Multiplying Powers = When multiplying powers you add the indices

Dividing Powers = When dividing powers you subtract the indices

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Standard Form

A number written in standard form is written in the format A x 10 to the power of n

'A' must be between 1 and 10

To write a number in standard form:

  • Work out the value of A
  • Work out how many times A must be multiplied or divided by 10 
  • This value equals n

Standard-Form-Examples.png (1240×1236)

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Surds

Surds

Surds are the numbers that have a decimal as a route 

Eg: the square root of 2

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Rationalising the Denominator

In order to rationalising the denominator, multiple the numerator and the denominator by the surd in the denominator and simplify.

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