Year 8 Maths
Maths Mentals
General Knowledge
General Knowledge 2
Year 8 Maths 2
100

What is the perimeter of a rectangle that is 5cm long and 3cm wide

16cm


...

100

3 x 6 + 5 = 

23

100

What popular video game features a battle royale island called the Fortnite island?

Fortnite

100

What social media app uses a ghost as its logo?

Snapchat

100

Define the term coefficient?

A number used to multiply a variable.

200

What is the formula for the area of a triangle? 

BONUS: A triangle has a base of 5cm and a perpendicular height of 6cm - what is its area? 

1/2 x the base x the height

15cm

200

8 x 6 - 9 x 3 = 

21

200

Which fruit is famously known for having its seeds on the outside?

Strawberry

200

Which singer is known for hits like “Bad Guy” and “Ocean Eyes”

Billie Eilish

200

How many degrees is in a right angle 


90 


300

y = 4 + 2x  x=-3  What is the value of y?

y = -2

300
(72 + 1)/2 = 

25

300

Which planet has the Great Red Spot?

Juptier

300

What gas do humans breathe in to survive?

Oxygen

300

if a triangle has every side equal, what is it called?

equilateral Triangle

400

What do we call the longest side of a right-angled triangle?

Hypotenuse

400

Expand this equation, a(b+c)= 

ab + ac

400

Which animal has the longest lifespan on Earth—some living over 200 years?

Greenland shark (can live 250+ years)

400

What country has won the most FIFA World Cup titles in men’s soccer?

Brazil

400

What is the volume of a rectangular prism with the following measurements?  5cm,  6cm,  7cm

V = 210cm3

500

y = a + bx  a=-1  b=3 y= 2  Whats is the value of x?

x= 1


500

5(p + 6) =

5p + 30

500

Which country is both the smallest in the world and completely surrounded by Italy?

Vatican City

500

What force keeps planets in orbit around the Sun?

Gravity

500

What is the perimeter of a right triangle that has two short sides of 6cm and 8cm?

24cm