Fractions, Decimals and Percentages
1
Numerator
-How many parts you have!
Percentages
Denominator
-How many groups you have
split the whole into.
-Percentage means out of 100!
1
3
------
-When you have the WHOLE of something you have 100%
Fractions
Recognising Fractions
http://www.bbc.co.uk/bitesize/ks2/maths/number/percentages/read/1/
http://www.ngfl-cymru.org.uk/vtc/ngfl/ngfl-flash/fractions/fractions.html
http://www.bbc.co.uk/bitesize/ks2/maths/number/fractions_basic/read/1/
100% = All
50% = 1/2 = divide by 2
25% = 1/4 = divide by 4
75% = 3/4 = divide by 4 x 3
10% = 1/10 = divide by 10
1% = 1/100 = divide by 100.
When you know these you can make links and find all percentages!
Equivalent Fractions
http://www.mathsisfun.com/equivalent_fractions.html
http://www.bbc.co.uk/bitesize/ks2/maths/number/equivalent_fractions/read/1/
http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/fractions/
DBTT
To find a fraction you need to divide
the number or shape by the bottom
(denominator) of the fraction and then multiplying the answer by the top (numerator)
of the fraction.
http://www.mathplayground.com/fractions_fractionof.html
http://weddell.sqweebs.com/decimals/fraction%20of%20amount.swf
Converting FDP
http://www.primarygames.co.uk/pg3/ppods/powerpods.html
Fractions, Decimals
and Percentages.
Rounding Decimals
http://www.mathsisfun.com/rounding-numbers.html
Positioning decimals
on a number line.
http://www.mathsframe.co.uk/resources/Placing_Numbers_on_a_Number_Line.aspx
Decimals
What is a decimal?
Revision Guide
http://www.bbc.co.uk/bitesize/ks2/maths/number/decimals/read/2/
Take a look at this website to remind yourself.
http://www.mathsisfun.com/ordering_decimals.html
http://www.bbc.co.uk/schools/teachers/ks2_activities/maths/decimals.shtml
Ordering Decimals
It's nothing new so make links.
DBTT
They are all ways of writing
part of a whole number.