Expand First: Problem Solving & Reasoning

Mathematics
Grade 7
15 questions
~30 mins
1 views0 downloads

About This Worksheet

A worksheet focusing on expanding brackets first before simplifying, aimed at Grade 7 students. Includes procedural practice, problem-solving, real-world applications, and extension questions.

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Expand First: Problem Solving & Reasoning

Subject: MathematicsGrade: Grade 7
Name:
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Untitled Worksheet

Grade Grade 7
A

Introduction

When expanding expressions with brackets, the key step is to distribute each term outside the brackets across all terms inside the brackets. This process is often called the distributive property. Once expanded, you can then simplify the expression by combining like terms.

B

Fluency & Practice

Answer the following questions to practice expanding brackets.
1.
Expand the expression: 3(x + 4).
[2 marks]
2.
Expand: 2(5x - 3).
[2 marks]
3.
Expand: -4(2x + 7).
[2 marks]
4.
Expand: 7(3x - 2) + 4(x + 5).
[4 marks]
C

Target Level Practice

Solve these problems involving expanding brackets in more complex expressions.
1.
Expand and simplify: 4(2x - 3) + 3(5x + 2).
[4 marks]
2.
Expand: -2(3x + 4) - (x - 5).
[4 marks]
3.
Expand: (x + 3)(x - 2).
[4 marks]
4.
Expand: (2x - 5)(x + 4).
[4 marks]
5.
Expand and simplify: -3(4x - 1) + 2(3x + 5).
[4 marks]
D

Word Problems & Real-world Applications

Apply your expanding skills to solve these contextual problems.
1.
A rectangle's length is given by 2(x + 3) meters, and its width is x - 2 meters. Expand the expressions for length and width and then find the total perimeter in terms of x.
[4 marks]
2.
A company produces (x + 5) boxes each containing (2x - 3) items. Expand to find the total number of items in terms of x.
[4 marks]
E

Challenge & Extension

Tackle these advanced problems involving expansion.
1.
Express the product (3x + 2)(x^2 - 4x + 5) by expanding fully.
[4 marks]
2.
If (x + 4)^2 = (x + 4)(x + 4), expand and simplify the expression.
[4 marks]
F

Mixed Review & Error Analysis

Answer the following questions, and review common mistakes.
1.
Identify and correct the mistake: Expand 5(2x - 3) as 10x - 3.
[2 marks]
2.
Expand: -2(x + 7) + 3(x - 2).
[4 marks]

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Details

Created
1/1/2026
Updated
1/1/2026
Type
worksheet