LCM HCF
How to work out HCF
break down the numbers into primes and create a venn diagram and the HCM is the numbers in the middle multiplied
how to work out the mean
add all the values together and divide by how many there is e.g. 2,3,4,2,4
=15 divided by 5 so the mean is 3
How to work out the Median
Rearrange number sequence from smallest to biggest e.g. 23,11,24,24,36
11,23,24,24,36
the median is 24
how to calculate the range?
Add smallest value in a number sequence to the largest value
e.g 9,9,4,12,22
22-4= 17 is the range
how to work out mode?
Mode is the most common value in a number sequence
e.g. 3,3,2,4,4,4,4,7,8
therefore 4 is the mode
How to work out LCM
work out the prime factors of the numbers provided then put into venn diagram and multiply them all