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maths (sequences nth term (n is the times table, is how many you get to…
maths
sequences nth term
n is the times table
is how many you get to the sequence number
how many do u get from the timetable to the sequence
write time table down
find out what times table it is in
eg.3,7,11,15,19 its in the 4 times table so 4,8,12,16 20 you get -1 from the time table to the sequence so it is 4n as that is the times table an -1 as that is how many form time table put together and you get 4n -1
allied angles-add up to 180-c
corresponding angels-are the same-f
alternate angles-are the same-z
angles in a triangle add up to 180 ,isosceles triangle have the same bottom number
angles around point add up to 369
angles in a straight line add up to 180
same is a +
different is a -
expanding brackets -is when you times what ever is in the brackets with the out side number eg.2(x+3)would be 2x+6
factorising brackets is when you put the brackets back in eg.2x+6 would be 2(x+3)
multiplying fractions -times across the top times across the bottom
adding fraction
rounding to 3 fs eg. 46313-46300 3sf
rounding to 2 sf eg.46313-46000
square numbers 1,4,9,16,25,36,49,64,81,100,121,144,109,196,225
cube numbers 1,8,27,64,125
triangular numbers 1,3,6,10,15,21,28,36,45,55
prime numbers 2,3,5,7,11,19,23,29,31
percentages eg 12% of 180 -0.12 x 180 =21.6
percentage increase 100 +percentage eg 60 by 12% -add 100% on to the 12% so you get 120% and then you time it by 60 to get you 67.20
percentage decrease 100- percentage eg.54 by 14%100 -14 % is 86 %
triangle area is bxh divided by 2
trapezium are add parallel sides and divide by 2 and x by height
parallelogram is b x h
rectangle is l x w
circumference of a circle is c=~d
area of a circle is pie r squared
hey diddle diddle medium is the middle you add and divide for the mode the is the one that you see the most and rang is the difference between