Finding Formula: Real-world Applications
Mathematics
Grade 7
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on finding the formula for arithmetic sequences through real-world scenarios, enhancing understanding of nth term calculations.
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Full preview • 12 questions
Finding Formula: Real-world Applications
Subject: MathematicsGrade: Grade 7
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Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Find the nth term formula for the sequence: 3, 6, 9, 12, ...
[2 marks]2.
Determine the nth term formula for the sequence: 5, 10, 15, 20, ...
[2 marks]3.
Write the nth term formula for the sequence: 20, 18, 16, 14, ...
[2 marks]4.
Find the 10th term of the sequence: 2, 4, 6, 8, ...
[2 marks]5.
What is the 15th term in the sequence: 7, 10, 13, 16, ...?
[2 marks]6.
A sequence starts with 12 and increases by 3 each time. Write the nth term formula.
[3 marks]7.
In a sequence, the 1st term is 50 and the common difference is -4. Find the formula for the nth term.
[3 marks]8.
A sequence has a 3rd term of 15 and a 5th term of 23. Find the nth term formula.
[4 marks]9.
Construct an arithmetic sequence where the 4th term is 20 and the common difference is 3. Write the first term and the nth term formula.
[4 marks]10.
A factory produces 100 units in the first week and increases production by 20 units each subsequent week. Write the nth term formula for weekly production.
[4 marks]11.
A student notices a pattern in a sequence: 4, 8, 12, 16, ... and wants to find a general rule. What is the nth term formula? Then, find the 20th term.
[4 marks]12.
Identify and correct the mistake: A sequence with first term 5 and common difference 3 has nth term a_n=5+3n. Is this correct? If not, fix it.
[3 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet