Revision

Ratio & Proportion

100

Simplify 4:8

1:2

200

Simplify 12:40

3:10

300

Divide €900 between A,B,C in the ratio 1:2:3

A =€150

B = €300

C = €450

400

50 apples cost €25. How much would 75 apples cost?

€37.50

500

What does "inverse proportion" mean?

When one value increases another value decreases. i.e. In a car as speed increases the time spent travelling decreases.

Geometry

100

Interior angles add up to...

180°

200

Describe alternate angles

One of a pair of angles on opposite sides of a line intersecting two other lines and between the two intersected lines

300

Describe corresponding angles

The angles which occupy the same relative position at each intersection where a straight line crosses two others

400

A reflex angle is _____ than 90° 

Greater/Bigger

500

What are collinear points?

Points on the same line

Statistics

100

Is the population of a country numerical or categorical data?

Numerical

200

Is a measurement continuous or discrete data?

Continuous

300

What is simple random sampling?

When a researcher randomly selects a subset of participants from a population

400

Are eye colours numerical or categorical data? 

Categorical

500

Are exam grades nominal or ordinal data?

Ordinal 

Coordinates

100

In a grid, the horizontal line is called the...

X-axis

200

Which quadrant has a negative X-axis and a positive Y-axis?

Quadrant 2

300

Point (0,0) is called the...

Origin

400

Find the midpoint between (-3,4) and (1,2)

(-1,3)

500

Find the slope between (1,2) and (3,4)

slope = 1

Algebra

100

If a=3, what does 2a + 1 =

2(3) + 1 = 7

200

7(x+2) =

7x + 14

300

a²xa²=

a⁴

400

(x+4)(x+2)

x²+6x+8

500

Solve: 3x - 4 = 8

x = 4