Area
Formula of a Rectangle
length x width
Expand 2(x+2)
2x + 4
Find the HCF of 30 and 18
6
How many sides does a nonagon have?
9
Formula of a Triangle
A = 1/2 length x width
Expand -2(x-3)
-2x +6
Factorise 3x - xy
x(3-y)
What is the only number that does not have its Roman numeral?
0
Circumference of a semi-circle
2π r/2 or π d/2
Expand (2x + 1)(x - 2)
2x^2 -3x -2
Factorise 3(x +2) +x(x + 2)
(x + 2)(3 + x)
What is the mathematical term for the fear of numbers?
Arithmophobia.
Area of a trapezium
A = 1/2(a+b)h
Expand (3x +1)(2x - 3)(x +4)
6x^3 + 17x^2 -31x -12
Factorise 4ab - 7ac + 4bd - 7cd
(4b - 7c)(a +d)
Do you know the original name used for the number 0?
Cipher