Year 9 Maths
Maths Mentals
Year 9 Maths 2
General Knowledge
General Knowledge 2
100
What is the perimeter of a rectangle that is 5cm long and 3cm wide
16cm
...
100
3 x 6 + 5 =
23
100
Define the term adjacent?
Next to or adjoining
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
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
How many degrees is in a triangle
180
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
300
y = 4 + 2x
If x=-3 What is the value of y?
y = -2
300
(7^2+1)/2
25
300
if a triangle has every side equal, what is it called?
equilateral Triangle
300
Which planet has the Great Red Spot?
Juptier
300
What gas do humans breathe in to survive?
Oxygen
400
What do we call the longest side of a right-angled triangle?
Hypotenuse
400
Expand this equation, 3(x+6)=
3x+18
400
What is the volume of this rectangular prism?
V = 72cm3
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?
Spain
500
y = a + bx
If a=-1 b=3 y= 2
Whats is the value of x?
x= 1
500
49 x 5
245
500
What is the perimeter of a right triangle that has two short sides of 6cm and 8cm?
24cm
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