GCSE

Mathematics

Paper 1

Different WordsADDPlusTotal

More thanSum of

SUBTRACTTake away

MinusDifferenceLess than

MULTIPLY

TimesLots ofProduct

DIVIDE

ShareDivisible by

3 5 2 8

1 7 6

2 1

180

2 90

2 45

etc

Area & Perimeter

Add up edges

Answer in cm

Area = Length x width

Answer in cm2

Area = HALF base x height

OR Base x Height 2

Area of a Triangle

Answer in cm2

Area Units

100cm

1 m2

100cm

so

1m2 = 10000 cm2

Volume

width

height

length

Volume = length x width x height

Units

cm3, m3

“Percent” = out of 100

Percent without a calculator

Find 10% by

DIVIDING by 10Then 5% half of 10%

30% 3 lots of 10%etc

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

DSTD

S TDistance

Speed Time

Be aware of units

2hrs 30 mins = 2.5 hours

Ratios

total = 10

450 ÷ 10 = 45

2 parts 2 x 45 = 90 etc

Share £450 in ratio 2:3:5

Interior Angles

180º

360º

540º Add a side . . .

Add 180º

Angles

Exterior Angle of any shape

add up to 360º

Angles

180º

same size

Bearings

Measured clockwise from north

N

Three figures

e.g. 075º, 223º

AveragesMean = sum of values

total freq

Median middle value

(write in order first)

Mode most popular(Modal)

Range biggest - smallest

Algebra

Key Words

Solve what does x stand for?

(must include = in sum)

Factorise put INTO brackets

Transformations

Enlargement

Rotation

Reflection

Translation

Use the tracing paper!

Careful of points of movement

Scatter Graphs

x

x

x

x

x

x

x

x

xCorrelati

on

Positive

Negative

Frequency Polygon

Plot at the

MIDPOINT

and

FREQNormal scale going up in

5’s, 10’s, 20’s etc

NOT groups

Grouped Frequency Diagram

‘Bar graph’

• Normal scale

• Bars as wide as the group0

5

10

15

20

25

30

10 20 30 40 500 10 20 30 40 50

ProbabilityProbability of two events

i.e. two sixes on a pair of dice

Prob event 1 x prob event 2

i.e. 1/6 x 1/6 = 1/36

Probability

Table of values

Expected number of winners . . .

Probability x number in

Q

Graphs

y = -x

y = x

y = x2

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