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Divide starting amount by bottom x by the top.

eg. 3/4 of £100 = 100 /4 x 3 = £75

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If 12 people in a class of 20 had blue eyes what is this as a fraction

12/20

simplified into 3/5

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(%/100) x £

e.g. A pair of shoes cost £50,They are reduced by 25%. What is their new price?

(25/100) x £50 = £12.50.
£50 - £12.5 = £37.50

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a+b+=c
c-b=a

£12.50 + £37.50 = £50
£50 - £37.50 = £12.50

a x b = c
c / b = a

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(% / 100) x £

eg. 12.5% discount of £200 =

(12.5 / 100) x £200 = £25

Checking Percentage questions

Show only decimal equivalent i.e. .125 x £200 = £25
£25  / £200 = .125

Remember percentage increase

increase of 12.5% would = 1.125

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Make lots of Rows and Columns in software at Level 2
Delete what you don;t need after.
Headings across top or use First cell in each row.

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AVERAGES, RANGE, CHARTS, DATA

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SHAPE, SPACE, SCALE, AREA, PERIMETER, 3D SHAPES

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* I found it difficult to do....
* Next time I would round £ to  estimate amounts
* My methods worked because I found different prices that were similar/varied because of what was included/quality.

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L x W

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L + W x 2

Works for compound shapes, using longest length and longest width

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L x W x D

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Use squares on screen/paper

Each Cm square will be equivalent to original size measurement.

Divide OS measurement by number of squares to find out what 1cm equals

Divide original size scale by how many 1/5s to find out what each .2 of a cm is = to.

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π r2
π= 3.14 (Check Test Question, may = 3)

ie. 3.14 x r x r

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π r2h
H = height
ie. 3.14 x r x r x height

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π r2h / 3
Same as Cylinder just divide answer by 3

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* Kilo = 1000 B, 100,000 Centis
* B = 1/1000 of Kilo, 100 centis, 1000 millis
* Centi = 1/100,000 Kilo, 1/100 B, 10 millis
* Milli = 1/1000 B, 1/10 Centi

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Put parts of scale or conversion into a column.

Place amount to convert under same unit of the conversion/scale.

Divide above, multiply across.

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Brackets,
Indices,
Division,
Multiplication,
Addition
Subtraction

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Add up all values, Divide by how many

i.e. 2, 3, 4, 5, 6 = 20
20 / 5 = 4.

Q. Why did you use the mean?

Beacause it uses all the values.

If zeros present, include these as a value to divide by.

Q. What does the mean/average show?

Possible answers:

Improving, Decreasing, from previous results/year/week etc.

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Biggest value - Smallest
i.e. 1, 3, 6, 10, 50, =
50 - 1 = 49.

Q. What does the range tell us?
Big range indicates that the .......are varied/inconsistent.

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Order all values and find the middle

Method one: Cross off from either end to find middle or two middle values.

Even data range = Two middle values

Odd data range = one middle value

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Use only for Surveys

Order all values and group.

Value that appears the most is mode. May be more than one.

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Level 1:

Include Gaps
Title in Questions
Label axis,
Include value unit of scale
Even Scale,
Ensure bar heights correct

Level 2:

Use software =
Edit axis for values MAX -
Add Key for dual or triple bar charts
Turn text boxes around

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Use software

Don't need to find angles on computer tests - find percentages and add sections

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Level 1 -

Certain,
Likely,
50/50
Unlikely
Impossible

Work in fractions. Identify possible outcomes of total.

Link to probability scale above.

Work to closest fifth.

Level 2

Decimal scale,
Convert fraction identified into decimal and mark on scale.

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Add trend line to split data.

Most trend lines show Negative or positive correlation

Sometimes, when dealing with time however, a trendline that is negative can show a positive correlation. i.e. training to run a marathon and time decreasing over number of practise runs.

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Subject Verb Agreement  |  English Lesson  |  Common Grammar Mistakes

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Writing Tips - How to punctuate a poem, 5 tips (podcast)

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woodworking tips- perfect miter joint glue ups wi

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