Math

Algebra

100

What are the fundamental operations in algebra?

Addition, Subtraction, Multiplication, Division

200

Simple equations, find the angle of the common angle in a triangle:

A = (x+30)

B = (x-30)

C = 90 

x = 45

A = 75

B = 15

C = 90

300

Expanding bracket, expand the following :

-7(2m-3n)

-14m + 21n

400

Simple factorising, factorise the following fully: 

6x + 2x²

2x(3+x)

500

Can you describe the difference between expressions and equations?

An equation means that two different expressions are connected to each other by an equal to sign in between, For example, 3x - 2 = 5 + x is an equation.

3x - 2 is an expression.

Geometry

100

Formula for finding the circumference?

C = 2*Pi*r

200

Angle sum in a quadrilateral?

360 

300

What is a reflex angle? 

An angle between 180-360

400

Who am I? 

I have two pair of equal sides 

One pair of equal angles 

Diagonals intersect at right angles

Kite

500

Name the regular polygon with 12 sides 

Dodecagon 

Mensuration

100

What is the formula for finding the area of a right triangle? 

h * b * ½

200

What is 1km in cm?

100.000 centimeters

300

What is a prisms?

Three dimensional object which has a constant cross-sectional area

400

Formula for finding the volume of a cube?

V = side³

500

This formula is used to find volume of what? 

4/3 * pi * r²

Sphere

Statistics and probability

100

I ordred something new! 2 hats, 3 shirts and 4 pants, how many different outfits can I make? 

24

200

What does P(A') mean?

The probability of not getting A

300

What is the formula you use, when working with a pie chart? 

frequency/total * 360 = A slice of pie

400

We're both diagrams, but with different names. You could say we're both inspired by the plants. You can use one of us in probability and the other in statistics. What are we called?

Stem and leaf diagram 

Tree diagram

500

What is a frequency histogram? 

It has a title, an x-axis, a y-axis, and vertical bars to visually represent the data.

Søljediagram

Trigonometry

100

What is pythagoras' theorem?

a²+b²=c²

200

There are 3 basic trigonometric ratios. I need one of them, but which one? 

I have the length of the opposite side and the length of the adjacent.

Tangent

300

In a triangle, I have the opposite and the angle, how do I find the hypotenuse? 

Rearrange Sin(a) = O/H    ->     H = O/Sin(a)

400

What is a bearing? 

A bearing is the angle in degrees measured clockwise from north.

500

What is an obtuse?

An angle that is greater than 90 degrees