cm in a mm= x10
mm in a cm= divide 10
m in a cm= x100
cm in a m= divide 100
km in a m= x1000
m in a km= divide 1000
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square root
the square root is what you do opposite way of finding the square numbers
example= the square root of 64 is 8.
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algebra
example:
x+4=16
16-4=
x=13
or
2x+4=16
16-4=12
2x=12
x=6
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graphs
example of a graph:
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angles
on a right angle= 90
on a straight line=180
in a full turn ( circle)=360
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pie chart
pie chart diagram below:
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scatter graph
diagram of a scatter graph:
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bubble method
( how to find the percentage of a number)
example of the bubble method:
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increasing and decreasing a number by a percentage.
example of increasing and decreasing by a percentage:
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crocodiles and equal
example:
10 < 20 = less than
30 > 20 = more than
20 = 10+10 = equalled to
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input and output
example:
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number lines (inequalities)
example:
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how to find the area of a shape
you have to multiply its height by its width.
example:
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find the perimeter of a shape
add all the sides all together.
example:
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how to find the area of a triangle
hight x width divide by 2
example:
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what is the mode, median, range and averages.
mode= most shown
median=middle number (but order lowest to biggest)
range= subtract biggest from smallest number
mean=all numbers added together but then divided by the amount of numbers there is.
a net is a 3d shape but has been unfolded but when you join it back together you will get the shape that you started with. it is also called a surface area.
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