Mastering Formulae

Mathematics
Grade 8
12 questions
~24 mins
0 views0 downloads

About This Worksheet

A worksheet covering fundamental and applied algebraic formulae for Grade 8 students to enhance their understanding and problem-solving skills.

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Mastering Formulae

Subject: MathematicsGrade: Grade 8
Name:
Date:

Untitled Worksheet

Grade Grade 8
A

Practice Questions

Answer all questions. Show your working in the grid spaces provided.
1.
Simplify the expression: 3(2x + 4) - 5x.
[2 marks]
2.
Expand the expression: (x + 3)(x + 5).
[3 marks]
3.
Factorize: x^2 + 7x + 12.
[2 marks]
4.
Write the formula for the area of a rectangle.
[1 mark]
5.
If the length of a rectangle is 8 cm and the width is 3 cm, what is its area?
[3 marks]
6.
The perimeter P of a rectangle is given by P = 2(length + width). Find the perimeter if length = 10 m and width = 4 m.
[3 marks]
7.
Solve for x: 5x - 7 = 18.
[2 marks]
8.
The formula for the volume of a cube is V = a^3, where a is the side length. Find the side length if the volume is 64 cm^3.
[3 marks]
9.
Express the formula for the circumference of a circle in terms of radius r.
[2 marks]
10.
Calculate the circumference of a circle with radius 7 cm. (Use π ≈ 3.14)
[3 marks]
11.
A rectangle has a length of (x + 2) meters and a width of (x - 1) meters. Write an expression for its area.
[2 marks]
12.
If the area of the rectangle from question 11 is 20 m^2, find the value of x.
[3 marks]

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Details

Created
12/30/2025
Updated
12/30/2025
Type
worksheet