Mastering Formulae
Mathematics
Grade 8
12 questions
~24 mins
0 views0 downloads
About This Worksheet
A worksheet covering key algebraic formulae and their applications for Grade 8 students.
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Mastering Formulae
Subject: MathematicsGrade: Grade 8
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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) when x = 5.
[2 marks]2.
Expand the expression: (x + 3)(x + 5).
[2 marks]3.
Factorize the quadratic: x^2 + 7x + 12.
[2 marks]4.
Solve for x: 2x - 5 = 9.
[2 marks]5.
If the area of a rectangle is given by A = l × w, where l = 10 cm and w = 4 cm, find the area.
[2 marks]6.
Express the formula for the volume of a cube with side length s.
[2 marks]7.
If V = s^3, find the side length s when V = 64.
[2 marks]8.
Given the formula for the area of a circle: A = πr^2, find the radius when A = 78.5 and π ≈ 3.14.
[2 marks]9.
A rectangular prism has length 8 cm, width 3 cm, and height h. Write an expression for its volume.
[2 marks]10.
Determine the value of x if (x + 2)^2 = 25.
[2 marks]11.
A triangle has sides of lengths 3x + 2, 5x - 1, and 2x + 4. Find the value of x if the triangle is equilateral.
[3 marks]12.
Challenge: A farmer is designing a rectangular field with an area of 1200 m^2. The length is 50 m more than the width. Find the dimensions of the field.
[4 marks]Quick Actions
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Details
- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet