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GCSE Mathematics Paper 2 The Final Step!!!. These are calculators!!!.

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Presentation on theme: "GCSE Mathematics Paper 2 The Final Step!!!. These are calculators!!!."— Presentation transcript:

1 GCSE Mathematics Paper 2 The Final Step!!!

2 These are calculators!!!.

3 MULTIPLY Times Lots of Product DIVIDE Share Divisible by etc

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

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

6 Circle Circumference Area  x d  x r 2

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

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

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

10 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

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

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

13 Angles 180º same size

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

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

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

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

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

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

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

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

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

23 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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