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Published byBraulio Weber Modified over 2 years ago

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GCSE Mathematics Paper 2 The Final Step!!!

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These are calculators!!!.

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MULTIPLY Times Lots of Product DIVIDE Share Divisible by 35 2 8 1 7 6 21 180 290 2 45 etc

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Area & Perimeter Add up edges Answer in cm Area = Length x width Answer in cm 2

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Area = HALF base x height ORBase x Height 2 AREA Answer in cm 2

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Circle Circumference Area x d x r 2

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Volume width height length Volume = length x width x height Units cm 3, m 3

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DST D ST Distance Speed Time Be aware of units 2hrs 30 mins = 2.5 hours

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Ratios total = 10 450 ÷ 10 = 45 2 parts 2 x 45 = 90 etc Share £450 in ratio 2:3:5

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Fraction of … ‘Divide by bottom and times by top’ 1 / 7 of … Divide amount by 7 3 / 7 of … Divide amount by 7 and times by 3

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“Percent ” out of 100 Percent with a calculator % x amount 100 EG: 36% of £156 36 x 156 100

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Interest Simple Find % x number of years Compound Interest on interest

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Angles 180º same size

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Bearings Measured clockwise from north N Three figures e.g. 075º, 223º

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Transformations Rotation Translation Use the tracing paper! Careful of points of movement

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Probability Table of values Expected number of winners... Probability x number in Q

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GROUPED FREQ Diagram ‘Bar graph’ Normal scale Bars as wide as the group

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FREQUENCY POLYGON Plot at the MIDPOINT and FREQ Normal scale going up in 5, 10, 20 etc NOT groups

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Mean Mean = sum of values total freq Grouped data sum of MIDPOINT x freq total freq

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Scatter Graphs x x x x x x x x x Correlation Positive Negative

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Graphs y = -x y = x y = x 2

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Pythagoras Side lengths only Hypotenuse ‘longest side’ a b c c 2 = a 2 + b 2 Square it Add ‘em Square root it

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Read every question carefully If you can do a question, Do it correctly! If struggling with a question, go onto the next and come back If time, check through each answer Good Luck

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